Residential delivery area · Iowa
ZIP Code 52640: Morning Sun, IA
ZIP code 52640 uses the postal name Morning Sun, Iowa and lies mostly in Louisa County (67% of its land) with the rest in Des Moines County (Census 2020 ZIP-county file). About 1,300 people live there (Census Bureau, ACS 2020-2024). Median household income is $67,813 (Census Bureau, ACS 2020-2024). By Census place, 1% of its land lies in Morning Sun; 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2022
- ZBP2023
- IRS2022
- Town
- Morning Sun · its only residential ZIP
- County
- Louisa County (67%); Des Moines County (33%)
- Census places
- Morning Sun
- House district
- IA-1 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 68.3 sq mi · 19 people per sq mi
Where is ZIP code 52640?
52640 centers on 41.101°, -91.280° and covers 68.3 square miles of land plus 0.0 of water. It borders 6 ZIP codes: 52660, 52653, 52644, 52659, 52637, 52738.
The map draws ZIP code areas only. For the streets inside 52640, 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 52640 compare with the rest of Louisa County?
| Measure | 52640 | In Louisa County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 1,274 | 7th of 12 | 397th of 970 |
| Median household income | $68k | 5th of 7 | 288th of 396 |
| Median home value | $126k | 6th of 7 | 367th of 423 |
Its median household income is higher than in 43% of U.S. residential ZIP codes, and it is denser than 25% of all 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 52640?
The 2020 Census counted 1,331 people in 52640; the ACS, which samples households over 2020-2024, estimates 1,274. Between the 2010 and 2020 censuses its population fell 8.0% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 1,274±202 (90% margin)
- 2020 Census count
- 1,331−8.0% since 2010 (1,447)
- Households
- 512
- 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 52640?
Of the 1,274 people the ACS estimates in 52640, 19.8% are under 18 and 25.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (90.8%).
- Under 1819.8%
- 18 to 6455.2%
- 65 and older25.0%
- White, not Hispanic90.8%
- Other or two or more6.5%
- Hispanic or Latino2.7%
- 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 52640 earn?
Median household income is $67,813 (ACS 2020-2024), the 5th highest of the 7 ranked ZIP codes in Louisa County. It is not measurably different from 2015-2019 ($79,627 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $67,813±$10,060
- Income per person
- $36,035
- Below the poverty line
- 9.7%
- Unemployed (of the labor force)
- 0.3%
- Adults 25+ with a bachelor's degree
- 11.3%
- Adjusted gross income per tax return, 2022
- $70,654590 returns; wages 68% 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 52640?
- Median home value (owners' estimate)
- $125,800
- Median gross rent
- $806
- Homes owned by their occupants
- 86.3%
- Housing units
- 579
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 52640?
34 business establishments had a location in this ZIP code in 2023, 1 more than in 2018; the most are in wholesale trade (ZIP Code Business Patterns).
- Wholesale trade5
- Other services (except public administration)5
- Construction4
- Transportation and warehousing4
- Health care and social assistance4
- Retail trade3
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 52640?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 52660 | Yarmouth | 279 | – | 7.4 mi |
| 52653 | Wapello | 3,083 | $84k | 7.8 mi |
| 52644 | Mount Union | 394 | $78k | 8.2 mi |
| 52659 | Winfield | 1,329 | $55k | 8.4 mi |
| 52637 | Mediapolis | 3,041 | $82k | 9.1 mi |
| 52738 | Columbus Junction | 3,398 | $80k | 12.9 mi |
| 52737 | Columbus City | 323 | $90k | 12.0 mi (near) |
| 52650 | Sperry | 799 | $105k | 12.3 mi (near) |
| 52752 | Grandview | 413 | $50k | 12.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.