ZIP 51520 vs ZIP 51528

Source:

Arion, IA — Dow City, IA

This side-by-side compares ZIP 51520 (Arion, IA) and ZIP 51528 (Dow City, IA) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 51520 has a population of 233 at 5 people per square mile, while ZIP 51528 has 931 at 5 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 51520 reports a median household income of $60,843 against $63,173 in ZIP 51528, with per-capita income of $25,543 vs $37,426. The share of adults holding a bachelor's degree or higher is 3.2% in 51520 and 13.1% in 51528. Poverty rate reads 2.1% vs 14.5%, and unemployment 0.0% vs 0.5% — 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 $146,600 in 51520 versus $117,900 in 51528, with median rent of $592 and $742 per month respectively. Homeownership rate is 77.8% vs 66.7%. 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
51520
Arion, IA
51528
Dow City, IA
Population 233 931
Median Household Income $60,843 $63,173
Per Capita Income $25,543 $37,426
Median Age 57.9 36.6
Bachelor's Degree or Higher 3.2% 13.1%
Poverty Rate 2.1% 14.5%
Unemployment Rate 0.0% 0.5%
Median Home Value $146,600 $117,900
Median Rent (monthly) $592 $742
Homeownership Rate 77.8% 66.7%
Population Density (per sq mi) 5 5

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

Full Profile
51520
Arion, IA
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51528
Dow City, IA
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What are common questions about this comparison?

How do ZIP codes 51520 and 51528 compare?
ZIP 51520 (Arion, IA) has a population of 233 and a median household income of $60,843. ZIP 51528 (Dow City, IA) has a population of 931 and a median household income of $63,173.
Which ZIP code has higher income, 51520 or 51528?
ZIP 51528 (Dow City, IA) has a higher median household income of $63,173 compared to $60,843 for ZIP 51520.
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.