Signals
21046
21012
Climate
73 · Top 37%
vs78 · Top 22%
Physical resilience
95 · Top 3%
vs94 · Top 4%
Housing affordability
87 · Top 38%
vs87 · Top 39%
Schools
72 · Top 23%
vs75 · Top 20%
Access
98 · Top 21%
vs96 · Top 34%
Economic stability
77 · Top 17%
vs87 · Top 2%
Measured values
| Metric | 21046 | 21012 | Source period |
|---|---|---|---|
| Population | 15,608 | 22,570 | 2024 ACS 5-Year |
| Median household income | $127,813 | $139,432 | 2024 ACS 5-Year |
| Per capita income | $61,404 | $63,734 | 2024 ACS 5-Year |
| Population density | 1,998/sq mi | 2,308/sq mi | 2024 ACS 5-Year |
| Median home value | $479,500 | $563,800 | 2024 ACS 5-Year |
| Median gross rent | $2,131 | $2,166 | 2024 ACS 5-Year |
| Homeownership rate | 65.1% | 86.3% | 2024 ACS 5-Year |
| Bachelor's degree or higher | 61.7% | 57.5% | 2024 ACS 5-Year |
| Poverty rate | 8.4% | 3.3% | 2024 ACS 5-Year |
| Average July high | 89°F | 86°F | 1991-2020 Normals |
| Average January low | 25°F | 30°F | 1991-2020 Normals |
| Annual precipitation | 45.0" | 44.0" | 1991-2020 Normals |
| Distance to major airport | 9 mi | 13 mi | NASR current cycle |
| Average commute | 26.1 min | 31.2 min | 2024 ACS 5-Year |
| Median age | 37.3 | 38.0 | 2024 ACS 5-Year |
| Public schools | 3 | 5 | 2024-25 school year |
| Students per teacher | 13.99 | 15.04 | 2024-25 school year |
| Math proficiency | 23.3% | 20.1% | 2019-20 school year |
| Reading proficiency | 29.6% | 41.8% | 2019-20 school year |
| Free or reduced-price lunch eligibility | 34.0% | 18.3% | 2024-25 school year |
A bolded value is the more favorable of the two where the metric has a clear direction. Metrics like population and density have no inherent better or worse and are shown unweighted.
Full profiles: 21046 — Columbia, MD · 21012 — Arnold, MD · How this is calculated: methodology