Residential delivery area · Iowa
ZIP Code 50583: Sac City, IA
ZIP code 50583 uses the postal name Sac City, Iowa and lies mostly in Sac County (97% of its land) with the rest in Calhoun County (Census 2020 ZIP-county file). About 2,300 people live there (Census Bureau, ACS 2020-2024). Median household income is $62,981 (Census Bureau, ACS 2020-2024). By Census place, 4% of its land lies in Sac City; 96% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2021
- ZBP2023
- IRS2022
- Town
- Sac City · its only residential ZIP
- County
- Sac County (97%); Calhoun County (3%)
- Census places
- Sac City
- House district
- IA-4 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 115.6 sq mi · 20 people per sq mi
Where is ZIP code 50583?
50583 centers on 42.433°, -94.986° and covers 115.6 square miles of land plus 0.5 of water. It borders 7 ZIP codes: 50561, 50567, 51450, 50535, 51433, 50540, 50568.
The map draws ZIP code areas only. For the streets inside 50583, 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 50583 compare with the rest of Sac County?
| Measure | 50583 | In Sac County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 2,288 | 1st of 15 | 249th of 970 |
| Median household income | $63k | not ranked | not ranked |
| Median home value | $145k | 4th of 6 | 341st of 423 |
50583's median household income is not ranked: its 90% margin of error (±$17,924) is more than a quarter of the figure ($62,981). 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 26% 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 50583?
The 2020 Census counted 2,642 people in 50583; the ACS, which samples households over 2020-2024, estimates 2,288. Between the 2010 and 2020 censuses its population fell 7.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 2,288±269 (90% margin)
- 2020 Census count
- 2,642−7.5% since 2010 (2,855)
- Households
- 1,171
- Median age
- 53.3
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 50583?
Of the 2,288 people the ACS estimates in 50583, 15.7% are under 18 and 29.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (94.4%).
- Under 1815.7%
- 18 to 6454.8%
- 65 and older29.5%
- White, not Hispanic94.4%
- Hispanic or Latino2.8%
- Other or two or more2.3%
- Black, not Hispanic0.3%
- Asian, not Hispanic0.3%
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 50583 earn?
Median household income is $62,981 (ACS 2020-2024). It is not measurably different from 2015-2019 ($67,835 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $62,981±$17,924
- Income per person
- $42,029
- Below the poverty line
- 14.9%
- Unemployed (of the labor force)
- 5.3%
- Adults 25+ with a bachelor's degree
- 23.8%
- Adjusted gross income per tax return, 2022
- $76,7271,290 returns; wages 58% 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 50583?
- Median home value (owners' estimate)
- $144,700
- Median gross rent
- $669
- Homes owned by their occupants
- 71.7%
- Housing units
- 1,342
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 50583?
107 business establishments had a location in this ZIP code in 2023, 8 fewer than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance17
- Retail trade16
- Other services (except public administration)12
- Professional, scientific, and technical services10
- Transportation and warehousing9
- Construction8
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 50583?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 50561 | Lytton | 585 | $67k | 7.0 mi |
| 50567 | Nemaha | 280 | $78k | 7.9 mi |
| 51450 | Lake View | 1,619 | $72k | 8.2 mi |
| 50535 | Early | 1,198 | $92k | 9.2 mi |
| 51433 | Auburn | 567 | $68k | 12.8 mi |
| 50540 | Fonda | 998 | $73k | 13.6 mi |
| 50568 | Newell | 1,384 | $75k | 13.9 mi |
| 50551 | Jolley | 96 | – | 12.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.