ZIP 20868 vs ZIP 20905

Source:

Spencerville, MD — Silver Spring, MD

This side-by-side compares ZIP 20868 (Spencerville, MD) and ZIP 20905 (Silver Spring, MD) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 20868 has a population of 790 at 152 people per square mile, while ZIP 20905 has 18,044 at 542 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 20868 reports a median household income of $143,333 against $159,740 in ZIP 20905, with per-capita income of $49,149 vs $59,049. The share of adults holding a bachelor's degree or higher is 39.0% in 20868 and 56.9% in 20905. Poverty rate reads 0.0% vs 5.7%, and unemployment 0.0% vs 6.2% — 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 $622,200 in 20868 versus $656,700 in 20905, with median rent of and $2,105 per month respectively. Homeownership rate is 100.0% vs 87.1%. 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:

vs
Metric
20868
Spencerville, MD
20905
Silver Spring, MD
Population 790 18,044
Median Household Income $143,333 $159,740
Per Capita Income $49,149 $59,049
Median Age 54.3 44.8
Bachelor's Degree or Higher 39.0% 56.9%
Poverty Rate 0.0% 5.7%
Unemployment Rate 0.0% 6.2%
Median Home Value $622,200 $656,700
Median Rent (monthly) $2,105
Homeownership Rate 100.0% 87.1%
Population Density (per sq mi) 152 542

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

Full Profile
20868
Spencerville, MD
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20905
Silver Spring, MD
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What are common questions about this comparison?

How do ZIP codes 20868 and 20905 compare?
ZIP 20868 (Spencerville, MD) has a population of 790 and a median household income of $143,333. ZIP 20905 (Silver Spring, MD) has a population of 18,044 and a median household income of $159,740.
Which ZIP code has higher income, 20868 or 20905?
ZIP 20905 (Silver Spring, MD) has a higher median household income of $159,740 compared to $143,333 for ZIP 20868.
How do I compare two ZIP codes on PlainZIP?
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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.

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.