Residential delivery area · Iowa
ZIP Code 51010: Castana, IA
ZIP code 51010 uses the postal name Castana, Iowa and lies entirely in Monona County (Census 2020 ZIP-county file). About 430 people live there (Census Bureau, ACS 2020-2024). Median household income is $89,063 (Census Bureau, ACS 2020-2024). By Census place, 1% of its land lies in Castana; 99% is outside any Census place.
- ACS2020-24
- Census2020
- ZBP2023
- IRS2022
- Town
- Castana · its only residential ZIP
- County
- Monona County
- Census places
- Castana
- House district
- IA-4 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 72.0 sq mi · 6 people per sq mi
Where is ZIP code 51010?
51010 centers on 42.098°, -95.938° and covers 72.0 square miles of land plus 0.4 of water. It borders 7 ZIP codes: 51040, 51034, 51056, 51572, 51026, 51558, 51063.
The map draws ZIP code areas only. For the streets inside 51010, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 51010 compare with the rest of Monona County?
| Measure | 51010 | In Monona County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 425 | 9th of 14 | 714th of 970 |
| Median household income | $89k | not ranked | not ranked |
| Median home value | $115k | not ranked | not ranked |
51010's income and home value are not ranked: it has fewer than 1,000 residents (425). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 12% of U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 51010?
The 2020 Census counted 421 people in 51010; the ACS, which samples households over 2020-2024, estimates 425. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 425±104 (90% margin)
- 2020 Census count
- 421
- Households
- 208
- Median age
- 46.7
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 51010?
Of the 425 people the ACS estimates in 51010, 20.2% are under 18 and 17.4% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (94.4%).
- Under 1820.2%
- 18 to 6462.4%
- 65 and older17.4%
- White, not Hispanic94.4%
- Hispanic or Latino4.0%
- Other or two or more1.6%
- Black, not Hispanic0.0%
- Asian, not Hispanic0.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 51010 earn?
Median household income is $89,063 (ACS 2020-2024).
- Median household income
- $89,063±$42,018
- Income per person
- $40,064
- Below the poverty line
- 2.4%
- Unemployed (of the labor force)
- 1.1%
- Adults 25+ with a bachelor's degree
- 11.0%
- Adjusted gross income per tax return, 2022
- $67,720200 returns; wages 64% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 51010?
- Median home value (owners' estimate)
- $114,800
- Median gross rent
- under $100
- Homes owned by their occupants
- 87.5%
- Housing units
- 262
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001).
What businesses are in 51010?
4 business establishments had a location in this ZIP code in 2023, 1 fewer than in 2018 (ZIP Code Business Patterns).
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 51010?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 51040 | Onawa | 3,500 | $71k | 8.1 mi |
| 51034 | Mapleton | 1,674 | $66k | 8.9 mi |
| 51056 | Smithland | 346 | $103k | 10.0 mi |
| 51572 | Soldier | 371 | $70k | 10.3 mi |
| 51026 | Hornick | 910 | $81k | 12.8 mi |
| 51558 | Moorhead | 549 | $77k | 12.9 mi |
| 51063 | Whiting | 1,072 | $81k | 13.2 mi |
| 51051 | Rodney | 39 | $52k | 7.6 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.