All Countries
Arnold, MD
Full City Profile · Maryland · Baltimore city County
3.9
/5.0
B+
Good
23,866
Population
2,206/sq mi density
$137,799
Median Income
$61,175 per capita
$547,800
Home Value
$586,678 Zillow
$2,177
Median Rent
29.1% income on rent
56°F
Avg Temperature
293 sunny days/yr
500
Violent Crime/100K
2,446 property/100K
B+
Overall
3.9 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
5.0 / 5.0
$137,799 median income, 2.1% unemployment
A
Affordability
4.4 / 5.0
$547,800 home value, $2,177/mo rent
F
Safety
1.0 / 5.0
500 violent crimes/100K (32% above avg)
A+
Education
5.0 / 5.0
59.4% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
+3.1%
23,147 → 23,866
over 10 years
Annual Pop. Growth
+0.31%
Compound annual growth rate
Median Income Change
+35.3%
$101,848 → $137,799
nominal, not inflation-adjusted
Annual Income Growth
+3.07%
Compound annual growth rate
Population Over Time
Total population for Arnold across each available Census ACS release.
Median Household Income Over Time
Median household income reported by U.S. Census ACS. Values are nominal (not adjusted for inflation).
Projected 2030
Simple projections extrapolating the 2013–2023 compound annual growth rate forward. These are mathematical extensions of recent trends, not forecasts — real outcomes depend on migration, policy and economic shifts.
Projected Population 2030
24,389
+523 from 2023 (23,866)
Projected Median Income 2030
$170,283
+$32,484 from 2023 ($137,799)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 23,147 | — | $101,848 | — |
| 2015 | 22,574 | -2.5% | $107,877 | +5.9% |
| 2017 | 23,041 | +2.1% | $117,072 | +8.5% |
| 2019 | 23,406 | +1.6% | $126,310 | +7.9% |
| 2021 | 25,056 | +7% | $133,343 | +5.6% |
| 2023 | 23,866 | -4.7% | $137,799 | +3.3% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.