ZIP code
51056
Smithland, IA
51056 covers Smithland in Woodbury County, with 332 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 51056. Methodology
ZIP code map of 51056
About ZIP code 51056
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 51056. Not ACS. Methodology
People in 51056
Race
- White389
- American Indian or Alaska Native4
- Asian3
- Other race4
- Two or more races4
Hispanic or Latino (any race): 7
Age
- Under 1044
- 10 to 1931
- 20 to 2943
- 30 to 3955
- 40 to 4934
- 50 to 5961
- 60 to 6962
- 70 to 7954
- 80 and older20
Income and housing in 51056
Education
- High school graduate93.8%
- Bachelor's degree21.3%
- Graduate degree8.5%
Places covering 51056
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.
- Smithland44.8%
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.
- Woodbury County94.3%
- Monona County5.7%
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
55.2% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 51056
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 501 | |
| 2006 | 448 | |
| 2007 | 508 | |
| 2009 | 458 | |
| 2010 | 419 | |
| 2011 | 465 | 403 |
| 2012 | 473 | 430 |
| 2013 | 499 | 380 |
| 2014 | 464 | 410 |
| 2015 | 413 | 410 |
| 2016 | 411 | 370 |
| 2017 | 321 | 390 |
| 2018 | 385 | 380 |
| 2019 | 460 | 400 |
| 2020 | 461 | 390 |
| 2021 | 349 | 390 |
| 2022 | 464 | 410 |
| 2023 | 332 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 51056
12 nearest ZIP centroids (any distance)
- 51051Rodney2.5 miPop 48 · Income $52,188
- 51044Oto4.9 miPop 173 · Income $88,750
- 51026Hornick5.8 miPop 1,050 · Income $82,411
- 51015Climbing Hill9.3 miPop 70 · Income —
- 51004Anthon9.8 miPop 853 · Income $49,821
- 51010Castana10.0 miPop 416 · Income $92,083
- 51034Mapleton10.1 miPop 1,844 · Income $65,489
- 51019Danbury12.3 miPop 441 · Income $66,250
- 51063Whiting14.1 miPop 1,109 · Income $70,714
- 51039Moville15.1 miPop 2,831 · Income $105,994
- 51040Onawa15.5 miPop 3,388 · Income $60,642
- 51055Sloan15.7 miPop 1,189 · Income $75,833
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 51056, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 51056 FAQ
- What city is ZIP code 51056 in?
- 51056 is in Smithland, IA.
- What county is 51056 in?
- 51056 is in Woodbury County.
- What is the median household income in 51056?
- The median household income in 51056 is $100,395.
- Which ZIP codes are near 51056?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 51056.