ZIP code
51301
Spencer, IA
51301 covers Spencer in Clay County, with 12,402 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 51301. Methodology
ZIP code map of 51301
About ZIP code 51301
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 51301. Not ACS. Methodology
People in 51301
Race
- White11,614
- Black or African American91
- American Indian or Alaska Native47
- Asian97
- Native Hawaiian and Pacific Islander6
- Other race235
- Two or more races516
Hispanic or Latino (any race): 612
Age
- Under 101,535
- 10 to 191,550
- 20 to 291,269
- 30 to 391,582
- 40 to 491,433
- 50 to 591,530
- 60 to 691,759
- 70 to 791,060
- 80 and older888
Income and housing in 51301
Education
- High school graduate95.1%
- Bachelor's degree27.5%
- Graduate degree8.3%
Places covering 51301
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Clay County100.0%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
9.1% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 51301
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 12,160 | |
| 2006 | 11,803 | |
| 2007 | 12,658 | |
| 2008 | 11,746 | |
| 2009 | 11,562 | |
| 2010 | 11,717 | |
| 2011 | 12,490 | 11,733 |
| 2012 | 12,867 | 11,640 |
| 2013 | 12,879 | 11,710 |
| 2014 | 12,905 | 11,580 |
| 2015 | 12,897 | 11,560 |
| 2016 | 12,778 | 11,270 |
| 2017 | 12,497 | 11,230 |
| 2018 | 12,401 | 11,260 |
| 2019 | 12,232 | 11,180 |
| 2020 | 12,161 | 11,330 |
| 2021 | 12,326 | 11,190 |
| 2022 | 12,326 | 11,220 |
| 2023 | 12,402 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 51301
12 nearest ZIP centroids (any distance)
- 51340Fostoria6.0 miPop 80 · Income $88,750
- 51333Dickens7.6 miPop 395 · Income $96,563
- 51338Everly9.2 miPop 912 · Income $56,346
- 51357Royal9.4 miPop 841 · Income $72,344
- 51343Greenville9.4 miPop 279 · Income —
- 51341Gillett Grove10.9 miPop 35 · Income —
- 51351Milford11.3 miPop 4,990 · Income $67,628
- 51358Ruthven13.0 miPop 1,277 · Income $70,921
- 51364Terril13.8 miPop 855 · Income $62,554
- 51331Arnolds Park14.3 miPop 920 · Income $84,615
- 51366Webb15.2 miPop 335 · Income $75,000
- 51346Hartley15.5 miPop 2,211 · Income $60,179
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 51301, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 51301 FAQ
- What city is ZIP code 51301 in?
- 51301 is in Spencer, IA.
- What county is 51301 in?
- 51301 is in Clay County.
- What is the median household income in 51301?
- The median household income in 51301 is $61,175.
- Which ZIP codes are near 51301?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 51301.