ZIP 21756 vs ZIP 21782

Source:

Keedysville, MD — Sharpsburg, MD

This side-by-side compares ZIP 21756 (Keedysville, MD) and ZIP 21782 (Sharpsburg, MD) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 21756 has a population of 3,612 at 67 people per square mile, while ZIP 21782 has 4,097 at 53 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 21756 reports a median household income of $101,786 against $94,130 in ZIP 21782, with per-capita income of $48,757 vs $46,340. The share of adults holding a bachelor's degree or higher is 28.8% in 21756 and 26.0% in 21782. Poverty rate reads 2.9% vs 3.1%, and unemployment 3.6% vs 9.1% — 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 $413,200 in 21756 versus $311,600 in 21782, with median rent of $1,321 and $1,147 per month respectively. Homeownership rate is 97.7% vs 85.9%. 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
21756
Keedysville, MD
21782
Sharpsburg, MD
Population 3,612 4,097
Median Household Income $101,786 $94,130
Per Capita Income $48,757 $46,340
Median Age 41.8 48.7
Bachelor's Degree or Higher 28.8% 26.0%
Poverty Rate 2.9% 3.1%
Unemployment Rate 3.6% 9.1%
Median Home Value $413,200 $311,600
Median Rent (monthly) $1,321 $1,147
Homeownership Rate 97.7% 85.9%
Population Density (per sq mi) 67 53

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

Full Profile
21756
Keedysville, MD
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Full Profile
21782
Sharpsburg, MD
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What are common questions about this comparison?

How do ZIP codes 21756 and 21782 compare?
ZIP 21756 (Keedysville, MD) has a population of 3,612 and a median household income of $101,786. ZIP 21782 (Sharpsburg, MD) has a population of 4,097 and a median household income of $94,130.
Which ZIP code has higher income, 21756 or 21782?
ZIP 21756 (Keedysville, MD) has a higher median household income of $101,786 compared to $94,130 for ZIP 21782.
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.