21042 — Ellicott City, Maryland
Area Profile
Income, jobs, climate, physical risk and development data for ZIP code 21042. Its median household income runs 21% above Ellicott City as a whole, which is why this ZIP carries a profile of its own.
How this area ranks
Data updated · 14 sources21042 ranks in the top 13% of ZIP areas measured for employment opportunity, with unemployment at 3.6% and median household income of $190,061. The unemployment rate is published for Ellicott City, MD, which contains 21042, rather than for 21042 alone.
Public schools test above most of the state: 73% of students met the mathematics standard, placing the area in the top 5% of published profiles for schools.
Residential permitting has slowed: 274 units authorized over the past twelve months, 75% below the prior year. The permit count and 1 other measure here are published for Ellicott City, MD, which contains 21042, rather than for 21042 alone.
These sentences are written by fixed rules from the measurements below — a statement appears because a number crossed a stated threshold, and the values behind it are stored with it. No figure anywhere on this site is invented, estimated or inferred to fill a gap. How this works.
At a glance
Jobs & opportunity
Unemployment across Ellicott City, MD, which contains 21042, is 3.6%, lower than in 78% of the 3,127 measured US ZIP areas.
Employment across Ellicott City, MD, which contains 21042, fell 0.3% over the past year, to 177,107 employed residents.
73% of adults hold a four-year degree, higher than 97% of measured US ZIP areas.
Median household income of $190,061 is higher than in 99% of measured US ZIP areas.
| Metric | Value | Compared nationally | Source period |
|---|---|---|---|
| Income of new arrivalsHoward County, MD’s figurefiling years 2022–2023 | $89,374 | 79th percentileof 2,996 | filing years 2022–2023 |
| Income of those who leftHoward County, MD’s figurefiling years 2022–2023 | $98,527 | 90th percentileof 2,996 | filing years 2022–2023 |
| Median household income ±$12,1212024 ACS 5-Year | $190,061 | Top 1%of 31,049 | 2024 ACS 5-Year |
| Per capita income ±$3,5562024 ACS 5-Year | $77,643 | Top 4%of 32,822 | 2024 ACS 5-Year |
| Poverty rate ±1%2024 ACS 5-Year | 3.1% | Top 11%of 32,846 | 2024 ACS 5-Year |
| Average commute ±1.3 min2024 ACS 5-Year | 30.8 min | Bottom 34%of 32,887 | 2024 ACS 5-Year |
| Bachelor's degree or higher ±2%2024 ACS 5-Year | 72.9% | Top 3%of 33,193 | 2024 ACS 5-Year |
| Drove alone to work ±3%2024 ACS 5-Year | 65.0% | 20th percentileof 32,798 | 2024 ACS 5-Year |
| EmploymentEllicott City, MD’s figureJuly 2026 | 177,107 | Top 21%of 3,127 | July 2026 |
| Employment change (3 years)Ellicott City, MD’s figureJuly 2026 | −1.2% | Bottom 36%of 3,127 | July 2026 |
| Employment change (year over year)Ellicott City, MD’s figureJuly 2026 | −0.3% | Top 42%of 3,127 | July 2026 |
| Labor forceEllicott City, MD’s figureJuly 2026 | 183,690 | 79th percentileof 3,127 | July 2026 |
| Labor force participation ±2%2024 ACS 5-Year | 82.5% | Top 32%of 32,883 | 2024 ACS 5-Year |
| Mean annual wageBaltimore-Columbia-Towson, MD Metro Area’s figure2025 OEWS | $76,370 | Top 18%of 2,760 | 2025 OEWS |
| Median annual wageBaltimore-Columbia-Towson, MD Metro Area’s figure2025 OEWS | $59,070 | Top 17%of 2,760 | 2025 OEWS |
| Public transit to work ±0.4%2024 ACS 5-Year | 0.6% | 74th percentileof 32,798 | 2024 ACS 5-Year |
| Unemployment change (year over year)Ellicott City, MD’s figureJuly 2026 | −0.3% | Top 38%of 3,127 | July 2026 |
| Unemployment rateEllicott City, MD’s figureJuly 2026 | 3.6% | Top 22%of 3,127 | July 2026 |
| Worked from home ±3%2024 ACS 5-Year | 28.2% | 93rd percentileof 32,798 | 2024 ACS 5-Year |
Median household income, successive ACS releases
Largest occupations — Baltimore-Columbia-Towson, MD
| Occupation | People employed | Median annual wage |
|---|---|---|
| General and Operations Managers | 44,960 | $117,040 |
| Retail Salespersons | 39,920 | $34,800 |
| Registered Nurses | 30,930 | $99,550 |
| Secretaries and Administrative Assistants, Except Legal, Medical, and Executive | 29,780 | $49,220 |
| Laborers and Freight, Stock, and Material Movers, Hand | 28,350 | $43,250 |
| Home Health and Personal Care Aides | 26,880 | $37,640 |
Searches the 40 largest occupations here that have a published wage.
Occupational employment and wages are published for metropolitan areas rather than for individual cities or ZIP areas, so these describe the wider labor market this location sits in. 2025 OEWS, U.S. Bureau of Labor Statistics.
The Bureau of Labor Statistics does not publish labor-force data for ZIP areas. This is the figure for Ellicott City, MD, the city containing this ZIP code.
73% of students met the state standard in mathematics and 72% in reading, across the schools here that reported results.
There are 15.0 students for every full-time teacher across 11 public schools, fewer than in most measured places.
| School | District | Students | Per teacher | Math | Reading |
|---|---|---|---|---|---|
| Mount Hebron High | Howard County Public Schools | 1,455 | 15.6 | 78% | 69% |
| Centennial High | Howard County Public Schools | 1,377 | 17.0 | 84% | 80% |
| Waverly Elementary | Howard County Public Schools | 827 | 13.6 | 76% | 80% |
| Burleigh Manor Middle | Howard County Public Schools | 777 | 15.9 | 74% | 76% |
| Northfield Elementary | Howard County Public Schools | 764 | 15.9 | 63% | 69% |
| Centennial Lane Elementary | Howard County Public Schools | 749 | 14.1 | 77% | 71% |
| Manor Woods Elementary | Howard County Public Schools | 697 | 13.7 | 70% | 72% |
| Folly Quarter Middle | Howard County Public Schools | 682 | 14.5 | 76% | 73% |
| St. Johns Lane Elementary | Howard County Public Schools | 636 | 14.5 | 62% | 63% |
| Dunloggin Middle | Howard County Public Schools | 623 | 14.2 | 62% | 65% |
| Triadelphia Ridge Elementary | Howard County Public Schools | 619 | 14.1 | 79% | 73% |
| Homewood School | Howard County Public Schools | 109 | 2.6 | 15% | 5% |
16.7% of students here are eligible for free or reduced-price lunch. That describes the circumstances families arrive with, not how the schools perform, so it is shown and not scored.
Public schools only, from the NCES Common Core of Data, placed by ZIP code — which schools are in this place, not which one a particular address is zoned for. A dash in a proficiency column is a gap in the federal file, not a bad result. Proficiency is measured against Maryland’s own standard, so it is ranked within state. How to read school figures.
Housing & affordability
How it’s calculated — housing affordability →Prices for everything a household buys run about 3% above the national average — the Bureau of Economic Analysis index reads 103.2, against 100 for the nation. Nationally, housing drives most of the spread between places in this index; other goods vary far less.
The Federal Housing Finance Agency’s house price index for the Baltimore-Columbia-Towson, MD Metro Area is up 32% over five years, and up 2.7% over the last year. It follows repeat sales of the same homes, so it measures price change rather than which homes happened to sell.
Homeowners here who pay a tax bill pay a median of $8,706 a year in real estate taxes, about 1.23% of the median home value.
HUD’s Fair Market Rent for a two-bedroom, set near the 40th percentile of recent new leases, is $1,857, below the $2,183 tenants already here pay.
At HUD’s Fair Market Rent of $1,857 a month for a two-bedroom, keeping rent to 30% of income takes a household income of about $74,300 a year, about 39% of the median household income here of $190,061.
The typical renter household here spends 36% of its income on rent, above the 30% threshold at which a household is considered cost-burdened. Median gross rent runs $2,183 a month.
A median home at $706,400 costs 3.3 times the median income of its owner-occupied households, $211,550, above the historic benchmark of about 3 times income.
Prices here run about 3% above the national average. The spread between places is driven mostly by housing — goods vary far less — and this excludes taxes.
Published for the Baltimore-Columbia-Towson, MD Metro Area as a whole. Prices are regional — people shop, commute and rent across a metropolitan area rather than within a city boundary — so this describes the cost of living around this place better than a figure drawn to its own limits would.
The figures above are measured against 21042’s median household income of $190,061, which describes the place rather than you. Enter your own and the ratio is recomputed against it. It stays in this browser.
| Metric | Value | Compared nationally | Source period |
|---|---|---|---|
| Cost of living indexthe Baltimore-Columbia-Towson, MD Metro Area’s figure2023 | 103.2 | Bottom 30%of 2,737 | 2023 |
| Home price change (1 year)the Baltimore-Columbia-Towson, MD Metro Area’s figure2026 Q2 | +2.7% | 43rd percentileof 3,071 | 2026 Q2 |
| Home price change (5 years)the Baltimore-Columbia-Towson, MD Metro Area’s figure2026 Q2 | +31.8% | 15th percentileof 3,071 | 2026 Q2 |
| Home price change (10 years)the Baltimore-Columbia-Towson, MD Metro Area’s figure2026 Q2 | +61.0% | 6th percentileof 3,071 | 2026 Q2 |
| Home price to income ±0.22024 ACS 5-Year | 3.3 | Bottom 30%of 29,275 | 2024 ACS 5-Year |
| Homeownership rate ±2%2024 ACS 5-Year | 84.7% | 67th percentileof 32,750 | 2024 ACS 5-Year |
| Housing units ±6512024 ACS 5-Year | 15,368 | 92nd percentileof 33,460 | 2024 ACS 5-Year |
| Market rent, one bedroomFY2026 | $1,511 | Bottom 35%of 3,031 | FY2026 |
| Market rent, three bedroomFY2026 | $2,358 | Bottom 33%of 3,031 | FY2026 |
| Market rent, two bedroomFY2026 | $1,857 | Bottom 32%of 3,031 | FY2026 |
| Median gross rent ±$1042024 ACS 5-Year | $2,183 | Bottom 5%of 26,396 | 2024 ACS 5-Year |
| Median home value ±$15,1722024 ACS 5-Year | $706,400 | 94th percentileof 30,812 | 2024 ACS 5-Year |
| Median property taxes ±$1762024 ACS 5-Year | $8,706 | 99th percentileof 28,935 | 2024 ACS 5-Year |
| Owner household income ±$13,4832024 ACS 5-Year | $211,550 | Top 1%of 29,802 | 2024 ACS 5-Year |
| Property tax rate ±0.04%2024 ACS 5-Year | 1.23% | 71st percentileof 24,099 | 2024 ACS 5-Year |
| Rent as a share of income ±8%2024 ACS 5-Year | 35.5% | Bottom 17%of 26,247 | 2024 ACS 5-Year |
| Seasonal and second homes ±312024 ACS 5-Year | 38 | 58th percentileof 33,772 | 2024 ACS 5-Year |
| Second homes2024 ACS 5-Year | 0.2% | 35th percentileof 32,961 | 2024 ACS 5-Year |
| Vacancy rate2024 ACS 5-Year | 1.5% | 12th percentileof 32,788 | 2024 ACS 5-Year |
| Vacant housing units ±1372024 ACS 5-Year | 269 | 60th percentileof 33,772 | 2024 ACS 5-Year |
These measures come from the same ACS release as the income they are compared with. They compare housing cost with local earnings only: transport, groceries, healthcare, insurance and taxes are not in them. How to read affordability, the two rent figures and the cost-of-living index.
Growth & development
How it’s calculated — growth →Development Momentum
An AreaProfile calculation combining permit volume per resident, its direction over one and three years, population change and employment growth. Permit volume alone is not the measure.
New construction is predominantly single-family: of 274 units permitted over the past twelve months, none were in buildings of five or more homes. The multifamily share is published for Ellicott City, MD, which contains 21042, rather than for 21042 alone.
At 0.8 permitted units per 1,000 residents, building activity is below the median for measured US ZIP areas. The permit rate is published for Ellicott City, MD, which contains 21042, rather than for 21042 alone.
People moving in and out
Where newcomers came from
- Baltimore County, MD 2,404 people · 12% of arrivals
- Prince George's County, MD 2,399 people · 12% of arrivals
- Anne Arundel County, MD 2,358 people · 12% of arrivals
- Montgomery County, MD 2,311 people · 12% of arrivals
- Baltimore city, MD 1,218 people · 6.3% of arrivals
Where people who left went
- Anne Arundel County, MD 2,671 people · 13% of departures
- Baltimore County, MD 2,216 people · 11% of departures
- Prince George's County, MD 1,476 people · 7.2% of departures
- Montgomery County, MD 1,342 people · 6.5% of departures
- Baltimore city, MD 1,187 people · 5.8% of departures
Based on the address on federal tax returns, compared with the same filers a year earlier. It counts people who file, and sees a move only when the address on a return changes. Domestic moves only: people arriving from abroad are left out. This is the figure for Howard County, MD. IRS Statistics of Income, filing years 2022–2023.
The Building Permits Survey is not published for ZIP areas. This is the figure for Ellicott City, MD, the city containing this ZIP code.
Weather & climate
7 of the twelve months have a normal average temperature between 55°F and 80°F. July averages a high of 89°F and January a low of 25°F.
Normal annual precipitation is 45.0 inches, including 19.3 inches of snow.
Precipitation
| Metric | Value | Source period |
|---|---|---|
| 90th percentile air quality index2024 calendar year | 54 | 2024 calendar year |
| Annual precipitation1991-2020 Normals | 45.0" | 1991-2020 Normals |
| Annual snowfall1991-2020 Normals | 19.3" | 1991-2020 Normals |
| Average January low1991-2020 Normals | 25°F | 1991-2020 Normals |
| Average July high1991-2020 Normals | 89°F | 1991-2020 Normals |
| Comfortable months1991-2020 Normals | 7 | 1991-2020 Normals |
| Days above AQI 1002024 calendar year | 0 | 2024 calendar year |
| Median air quality index2024 calendar year | 32 | 2024 calendar year |
| Seasonal temperature swing1991-2020 Normals | 44°F | 1991-2020 Normals |
Air quality
A comfortable median and a bad tail are different problems. Wildfire smoke and summer ozone show up in the worst tenth of days, not in the middle of the year.
Climate figures are thirty-year normals, not current conditions. Air quality is measured by EPA monitors and published by county only where a monitor sits; a county without one shows nothing rather than an estimate, and a county reading is still the county’s. How to read climate and air quality.
Physical risk
The hazards accounting for most of this area's expected annual loss are inland flooding, heat wave and hurricane, with inland flooding alone responsible for 58% of it. Inland flooding and heat wave are independently rated low or minimal nationally, so this describes how the loss is composed, not how large those hazards are.
Overall hazard risk is lower than 97% of measured US ZIP areas.
Low or minimal exposure: winter weather, heat wave, strong wind, lightning, inland flooding, earthquake, hail, ice storm, tornado, coastal flooding, wildfire, tsunami, avalanche, volcanic activity.
Hazard ratings are AreaProfile calculations derived from the FEMA National Risk Index v1.20.0 (December 2025). FEMA publishes at county level. ZIP values are the land-area-weighted mean of the counties the ZIP Code Tabulation Area intersects. Expected annual loss is not allocated below county level. FEMA does not endorse this presentation. Higher physical resilience means lower exposure.
These are deaths, not offenses — they say nothing about burglary, theft or assault.
Firearm deaths count every intent together, and nationally the majority are suicides rather than homicides, so the firearm figure and the homicide figure above it count some of the same deaths twice over. They overlap and should not be added together.
Death rates are crude rates — deaths divided by population, not adjusted for age — except where a count was too small for the CDC to publish and it modeled the rate, which the card marks. They come from provisional death certificate records, published by the CDC by county and not below it. So they describe the county around 21042 (Howard County) rather than 21042 itself. They are shown and not scored. How to read death rates.
What this profile does not cover
Each of these is absent for a reason, not by oversight. The Area Score is calculated without them; the weighting is on the methodology page.
- Reported crime
- Offenses reported to police are published by department rather than by town, so AreaProfile shows a rate only on city profiles, and only where that city’s department submitted every month of a year. A ZIP area is not a jurisdiction, so no department reports for one. Ellicott City carries the figure where its department reported a full year. A partial year is never scaled up to look complete, and arrest counts or news volume are never substituted for it.
- Taxes
- Income and sales taxes are not published: no source covers them nationally with a method open enough to check. Property taxes are shown in the housing section but are not part of the score. The cost-of-living index above is a price level for all consumption, not a household budget, and it excludes taxes. Nothing here is individualized tax advice.
- Anything about a specific address
- Every figure describes an area, not a street or a house.
Access
5 major airports lie within 100 miles, the nearest Baltimore/Washington Intl Thurgood Marshall at 14 miles.
| Metric | Value | Compared nationally | Source period |
|---|---|---|---|
| Broadband access ±0.8%2024 ACS 5-Year | 95.8% | Top 16%of 32,663 | 2024 ACS 5-Year |
| Distance to major airportNASR current cycle | 14 mi | Top 40%of 3,127 | NASR current cycle |
| Major airports within 100 milesNASR current cycle | 5 | Top 44%of 3,127 | NASR current cycle |
| No internet access ±2%2024 ACS 5-Year | 2.1% | Top 15%of 32,663 | 2024 ACS 5-Year |
| Airport | Code | Distance | Longest runway |
|---|---|---|---|
| Baltimore/Washington Intl Thurgood Marshall | BWI | 14 mi | 10,503 ft |
| Washington Dulles Intl | IAD | 38 mi | 11,500 ft |
| Harrisburg Intl | MDT | 64 mi | 10,001 ft |
Airport identity, position and runway data come from the FAA. “Major airport” is an AreaProfile classification — a public-use civil airport with a paved runway of at least 8,000 feet — not an FAA hub designation. Distances are straight-line, not driving distance.
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Similar places
Matched on AreaProfile signals, not geographyData & methodology
| Used for | Source | Source period |
|---|---|---|
| Access | Federal Aviation Administration Airports (NASR) — Aeronautical Data Delivery Service | NASR current cycle |
| Physical risk | Federal Emergency Management Agency National Risk Index | National Risk Index December 2025 (v1.20.0) |
| Demographics, Income | Internal Revenue Service, Statistics of Income Division U.S. Population Migration Data (county to county) | filing years 2022–2023 |
| Climate | NOAA National Centers for Environmental Information U.S. Climate Normals 1991–2020 (Monthly) | 1991-2020 Normals |
| Housing | U.S. Bureau of Economic Analysis Regional price parities and county personal income | 2023 |
| Jobs | U.S. Bureau of Labor Statistics Local Area Unemployment Statistics | July 2026 |
| Jobs | U.S. Bureau of Labor Statistics Occupational Employment and Wage Statistics | 2025 OEWS |
| Access, Demographics, Housing, Income, Jobs | U.S. Census Bureau American Community Survey 5-Year Estimates (Table-Based Summary File) | 2024 ACS 5-Year |
| Development | U.S. Census Bureau Building Permits Survey | 12 months ending July 2026 |
| Safety | U.S. Centers for Disease Control and Prevention, National Center for Health Statistics Provisional county-level mortality by intent | March 2025 to February 2026; May 2025 to April 2026 |
| Schools | U.S. Department of Education, National Center for Education Statistics Common Core of Data and EDFacts assessments | 2018-19 school year; 2024-25 school year |
| Housing | U.S. Department of Housing and Urban Development, Office of Policy Development and Research Fair Market Rents | FY2026 |
| Climate | U.S. Environmental Protection Agency, Air Quality System Daily Air Quality Index by county | 2024 calendar year |
| Housing | U.S. Federal Housing Finance Agency House Price Index (traditional, all-transactions) | 2026 Q2 |
| Current conditions | NOAA National Weather Service National Weather Service current conditions | Live observation, read when the page opens |
Profile recalculated October 8, 2026. Recalculation is not the same as new source data — each figure above shows the period its source actually covers. Read the full methodology, or every source with how often each updates.
21042 vs Ellicott City
How this ZIP area compares with Ellicott City as a whole. Both figures come from the same ACS release, so the comparison is like for like — a gap here is a real difference between the two places, not two surveys disagreeing.
Some demographic statistics use Census ZIP Code Tabulation Areas, which approximate but do not exactly match USPS ZIP delivery geography. See the methodology for how AreaProfile maps between them.