ZIP 21869 vs ZIP 21837

Source:

Vienna, MD — Mardela Springs, MD

This side-by-side compares ZIP 21869 (Vienna, MD) and ZIP 21837 (Mardela Springs, MD) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 21869 has a population of 1,006 at 4 people per square mile, while ZIP 21837 has 2,614 at 23 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 21869 reports a median household income of $62,045 against $62,880 in ZIP 21837, with per-capita income of $34,083 vs $34,456. The share of adults holding a bachelor's degree or higher is 11.8% in 21869 and 18.0% in 21837. Poverty rate reads 7.5% vs 5.7%, and unemployment 2.0% 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 $232,300 in 21869 versus $227,400 in 21837, with median rent of $1,596 and $1,115 per month respectively. Homeownership rate is 85.1% vs 87.2%. 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:

vs
Metric
21869
Vienna, MD
21837
Mardela Springs, MD
Population 1,006 2,614
Median Household Income $62,045 $62,880
Per Capita Income $34,083 $34,456
Median Age 40.3 40.8
Bachelor's Degree or Higher 11.8% 18.0%
Poverty Rate 7.5% 5.7%
Unemployment Rate 2.0% 4.6%
Median Home Value $232,300 $227,400
Median Rent (monthly) $1,596 $1,115
Homeownership Rate 85.1% 87.2%
Population Density (per sq mi) 4 23

Values highlighted in green indicate the better metric where applicable. Source: U.S. Census Bureau ACS 2023.

Full Profile
21869
Vienna, MD
View full ZIP profile →
Full Profile
21837
Mardela Springs, MD
View full ZIP profile →

What are common questions about this comparison?

How do ZIP codes 21869 and 21837 compare?
ZIP 21869 (Vienna, MD) has a population of 1,006 and a median household income of $62,045. ZIP 21837 (Mardela Springs, MD) has a population of 2,614 and a median household income of $62,880.
Which ZIP code has higher income, 21869 or 21837?
ZIP 21837 (Mardela Springs, MD) has a higher median household income of $62,880 compared to $62,045 for ZIP 21869.
How do I compare two ZIP codes on PlainZIP?
Visit plainzip.com/compare, enter two 5-digit U.S. ZIP codes, and click Compare. You can also navigate directly to /compare/XXXXX-vs-YYYYY to share a specific comparison.

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.

Data sourced from official U.S. Census ACS and HUD-USPS ZIP crosswalk data. See our methodology for details. Retrieved and formatted by PlainZIP Editorial.