ZIP 51247 vs ZIP 51235

Source:

Rock Valley, IA — Doon, IA

This side-by-side compares ZIP 51247 (Rock Valley, IA) and ZIP 51235 (Doon, IA) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 51247 has a population of 4,870 at 17 people per square mile, while ZIP 51235 has 1,079 at 7 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 51247 reports a median household income of $78,358 against $71,016 in ZIP 51235, with per-capita income of $35,505 vs $40,773. The share of adults holding a bachelor's degree or higher is 15.1% in 51247 and 7.6% in 51235. Poverty rate reads 8.8% vs 9.8%, and unemployment 0.3% vs 9.3% — 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 $262,900 in 51247 versus $240,700 in 51235, with median rent of $1,142 and $531 per month respectively. Homeownership rate is 61.1% vs 74.2%. 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
51247
Rock Valley, IA
51235
Doon, IA
Population 4,870 1,079
Median Household Income $78,358 $71,016
Per Capita Income $35,505 $40,773
Median Age 37.7 37.1
Bachelor's Degree or Higher 15.1% 7.6%
Poverty Rate 8.8% 9.8%
Unemployment Rate 0.3% 9.3%
Median Home Value $262,900 $240,700
Median Rent (monthly) $1,142 $531
Homeownership Rate 61.1% 74.2%
Population Density (per sq mi) 17 7

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

Full Profile
51247
Rock Valley, IA
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51235
Doon, IA
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What are common questions about this comparison?

How do ZIP codes 51247 and 51235 compare?
ZIP 51247 (Rock Valley, IA) has a population of 4,870 and a median household income of $78,358. ZIP 51235 (Doon, IA) has a population of 1,079 and a median household income of $71,016.
Which ZIP code has higher income, 51247 or 51235?
ZIP 51247 (Rock Valley, IA) has a higher median household income of $78,358 compared to $71,016 for ZIP 51235.
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.