Residential delivery area · Iowa
ZIP Code 50645: Ionia, IA
ZIP code 50645 uses the postal name Ionia, Iowa and lies mostly in Chickasaw County (90% of its land), reaching into Bremer County and Floyd County (Census 2020 ZIP-county file). About 1,200 people live there (Census Bureau, ACS 2020-2024). Median household income is $64,408 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Ionia (under 1%) and Bassett (under 1%); 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2021
- ZBP2023
- IRS2022
- Town
- Ionia · its only residential ZIP
- County
- Chickasaw County (90%); Bremer County (7%); Floyd County (3%)
- Census places
- Ionia (under 1%); Bassett (under 1%)
- House district
- IA-2 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 85.6 sq mi · 14 people per sq mi
Where is ZIP code 50645?
50645 centers on 43.020°, -92.444° and covers 85.6 square miles of land plus 0.2 of water. It borders 8 ZIP codes: 50658, 50659, 50616, 50603, 50666, 50630, 50676, 50677.
The map draws ZIP code areas only. For the streets inside 50645, 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 50645 compare with the rest of Chickasaw County?
| Measure | 50645 | In Chickasaw County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 1,193 | 7th of 9 | 415th of 970 |
| Median household income | $64k | not ranked | not ranked |
| Median home value | $115k | 6th of 6 | 401st of 423 |
50645's median household income is not ranked: its 90% margin of error (±$25,574) is more than a quarter of the figure ($64,408). 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 21% 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 50645?
The 2020 Census counted 1,124 people in 50645; the ACS, which samples households over 2020-2024, estimates 1,193. Between the 2010 and 2020 censuses its population fell 6.6% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 1,193±211 (90% margin)
- 2020 Census count
- 1,124−6.6% since 2010 (1,204)
- Households
- 571
- Median age
- 53.8
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 50645?
Of the 1,193 people the ACS estimates in 50645, 19.8% are under 18 and 27.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (94.4%).
- Under 1819.8%
- 18 to 6453.1%
- 65 and older27.2%
- White, not Hispanic94.4%
- Black, not Hispanic3.7%
- Hispanic or Latino1.7%
- Asian, not Hispanic0.2%
- Other or two or more0.1%
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 50645 earn?
Median household income is $64,408 (ACS 2020-2024). It is not measurably different from 2015-2019 ($74,846 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $64,408±$25,574
- Income per person
- $33,920
- Below the poverty line
- 11.7%
- Unemployed (of the labor force)
- 0.2%
- Adults 25+ with a bachelor's degree
- 15.6%
- Adjusted gross income per tax return, 2022
- $80,138530 returns; wages 51% 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 50645?
- Median home value (owners' estimate)
- $114,600
- Median gross rent
- $924
- Homes owned by their occupants
- 90.2%
- Housing units
- 622
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 50645?
21 business establishments had a location in this ZIP code in 2023, 1 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction10
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 50645?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 50658 | Nashua | 2,450 | $72k | 6.8 mi |
| 50659 | New Hampton | 5,688 | $78k | 7.8 mi |
| 50616 | Charles City | 9,358 | $65k | 11.7 mi |
| 50603 | Alta Vista | 555 | $74k | 11.7 mi |
| 50666 | Plainfield | 753 | $80k | 11.8 mi |
| 50630 | Fredericksburg | 1,372 | $72k | 12.4 mi |
| 50676 | Tripoli | 2,017 | $87k | 17.4 mi |
| 50677 | Waverly | 12,673 | $86k | 17.5 mi |
| 50631 | Frederika | 225 | $59k | 11.5 mi (near) |
| 50620 | Colwell | 36 | – | 12.1 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.