ZIP 20777 vs ZIP 21029
Source:
Highland, MD – Clarksville, MD
This side-by-side compares ZIP 20777 (Highland, MD) and ZIP 21029 (Clarksville, MD) using the same Census ACS 5-Year table fields for both, no averages swapped in, no national proxies. ZIP 20777 has a population of 3,314 at 169 people per square mile, while ZIP 21029 has 11,333 at 274 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 20777 reports a median household income of $226,146 against $243,542 in ZIP 21029, with per-capita income of $106,611 vs $89,689. The share of adults holding a bachelor's degree or higher is 75.2% in 20777 and 81.4% in 21029. Poverty rate reads 1.0% vs 1.1%, and unemployment 1.5% vs 1.9% - 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 $861,900 in 20777 versus $912,100 in 21029, with median rent of $2,875 and $3,501 per month respectively. Homeownership rate is 95.3% vs 93.6%. 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 | 20777 Highland, MD | 21029 Clarksville, MD |
|---|---|---|
| Population | 3,314 | 11,333 |
| Median Household Income | $226,146 | $243,542 |
| Per Capita Income | $106,611 | $89,689 |
| Median Age | 45.5 | 43.1 |
| Bachelor's Degree or Higher | 75.2% | 81.4% |
| Poverty Rate | 1.0% | 1.1% |
| Unemployment Rate | 1.5% | 1.9% |
| Median Home Value | $861,900 | $912,100 |
| Median Rent (monthly) | $2,875 | $3,501 |
| Homeownership Rate | 95.3% | 93.6% |
| Population Density (per sq mi) | 169 | 274 |
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.