ZIP 21042 vs ZIP 21044

Source:

Ellicott City, MD — Columbia, MD

This side-by-side compares ZIP 21042 (Ellicott City, MD) and ZIP 21044 (Columbia, MD) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 21042 has a population of 38,076 at 392 people per square mile, while ZIP 21044 has 41,704 at 1,342 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 21042 reports a median household income of $190,061 against $135,057 in ZIP 21044, with per-capita income of $77,643 vs $68,805. The share of adults holding a bachelor's degree or higher is 72.9% in 21042 and 67.9% in 21044. Poverty rate reads 3.3% vs 7.0%, and unemployment 1.9% vs 3.9% — 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 $706,400 in 21042 versus $566,500 in 21044, with median rent of $2,183 and $2,166 per month respectively. Homeownership rate is 84.7% vs 60.3%. 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
21042
Ellicott City, MD
21044
Columbia, MD
Population 38,076 41,704
Median Household Income $190,061 $135,057
Per Capita Income $77,643 $68,805
Median Age 45.1 40
Bachelor's Degree or Higher 72.9% 67.9%
Poverty Rate 3.3% 7.0%
Unemployment Rate 1.9% 3.9%
Median Home Value $706,400 $566,500
Median Rent (monthly) $2,183 $2,166
Homeownership Rate 84.7% 60.3%
Population Density (per sq mi) 392 1,342

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

Full Profile
21042
Ellicott City, MD
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Full Profile
21044
Columbia, MD
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What are common questions about this comparison?

How do ZIP codes 21042 and 21044 compare?
ZIP 21042 (Ellicott City, MD) has a population of 38,076 and a median household income of $190,061. ZIP 21044 (Columbia, MD) has a population of 41,704 and a median household income of $135,057.
Which ZIP code has higher income, 21042 or 21044?
ZIP 21042 (Ellicott City, MD) has a higher median household income of $190,061 compared to $135,057 for ZIP 21044.
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.