ZIP 21758 vs ZIP 21716
Source:
Knoxville, MD — Brunswick, MD
This side-by-side compares ZIP 21758 (Knoxville, MD) and ZIP 21716 (Brunswick, MD) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 21758 has a population of 4,921 at 59 people per square mile, while ZIP 21716 has 4,885 at 585 per square mile. That difference in population size and density alone reshapes how every other metric should be interpreted — a higher-income ZIP with 1,200 residents behaves very differently from one with 45,000.
On income and education, ZIP 21758 reports a median household income of $111,528 against $109,382 in ZIP 21716, with per-capita income of $50,488 vs $55,483. The share of adults holding a bachelor's degree or higher is 43.7% in 21758 and 33.6% in 21716. Poverty rate reads 5.9% vs 6.7%, and unemployment 8.5% vs 4.6% — these four fields alone drive most of the difference in the scorecard grades you will see for each ZIP.
Housing separates these two ZIPs further: median home value sits at $424,600 in 21758 versus $361,300 in 21716, with median rent of $1,770 and $1,195 per month respectively. Homeownership rate is 84.4% vs 85.1%. When reading the comparison table below, focus on paired metrics rather than single winners — a ZIP with lower home values and lower income is not strictly "worse" if rent-to-income ratios and commute times land in the same zone. Every value is pulled from the exact same ACS table so the two columns are genuinely comparable.
Compare different ZIP codes:
| Metric | 21758 Knoxville, MD | 21716 Brunswick, MD |
|---|---|---|
| Population | 4,921 | 4,885 |
| Median Household Income | $111,528 | $109,382 |
| Per Capita Income | $50,488 | $55,483 |
| Median Age | 39 | 38.5 |
| Bachelor's Degree or Higher | 43.7% | 33.6% |
| Poverty Rate | 5.9% | 6.7% |
| Unemployment Rate | 8.5% | 4.6% |
| Median Home Value | $424,600 | $361,300 |
| Median Rent (monthly) | $1,770 | $1,195 |
| Homeownership Rate | 84.4% | 85.1% |
| Population Density (per sq mi) | 59 | 585 |
Values highlighted in green indicate the better metric where applicable. Source: U.S. Census Bureau ACS 2023.
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All data sourced from the U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023).
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.