Residential delivery area · Iowa
ZIP Code 51449: Lake City, IA
ZIP code 51449 uses the postal name Lake City, Iowa and lies mostly in Calhoun County (88% of its land) with the rest in Carroll County (Census 2020 ZIP-county file). About 2,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $75,329 (Census Bureau, ACS 2020-2024). By Census place, 5% of its land lies in Lake City; 95% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2022
- ZBP2023
- IRS2022
- Town
- Lake City · its only residential ZIP
- County
- Calhoun County (88%); Carroll County (12%)
- Census places
- Lake City
- House district
- IA-4 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 89.7 sq mi · 22 people per sq mi
Where is ZIP code 51449?
51449 centers on 42.266°, -94.734° and covers 89.7 square miles of land plus 0.6 of water. It borders 7 ZIP codes: 51451, 51433, 51453, 50579, 50561, 51443, 51401.
The map draws ZIP code areas only. For the streets inside 51449, 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 51449 compare with the rest of Calhoun County?
| Measure | 51449 | In Calhoun County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 1,950 | 4th of 15 | 286th of 970 |
| Median household income | $75k | 1st of 3 | 213th of 396 |
| Median home value | $116k | 4th of 4 | 396th of 423 |
Its median household income is higher than in 55% of U.S. residential ZIP codes, and it is denser than 27% 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 51449?
The 2020 Census counted 2,098 people in 51449; the ACS, which samples households over 2020-2024, estimates 1,950. Between the 2010 and 2020 censuses its population fell 1.4% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 1,950
- 2020 Census count
- 2,098−1.4% since 2010 (2,128)
- Households
- 823
- Median age
- 48.3
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 51449?
Of the 1,950 people the ACS estimates in 51449, 18.4% are under 18 and 29.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (89.2%).
- Under 1818.4%
- 18 to 6452.2%
- 65 and older29.5%
- White, not Hispanic89.2%
- Other or two or more6.1%
- Hispanic or Latino3.2%
- Black, not Hispanic1.1%
- Asian, not Hispanic0.4%
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 51449 earn?
Median household income is $75,329 (ACS 2020-2024), the highest of the 3 ranked ZIP codes in Calhoun County. It is not measurably different from 2015-2019 ($66,909 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $75,329±$10,313
- Income per person
- $47,087
- Below the poverty line
- 9.4%
- Unemployed (of the labor force)
- 1.3%
- Adults 25+ with a bachelor's degree
- 17.6%
- Adjusted gross income per tax return, 2022
- $81,948870 returns; wages 52% 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 51449?
- Median home value (owners' estimate)
- $115,800
- Median gross rent
- $763
- Homes owned by their occupants
- 80.6%
- Housing units
- 898
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 51449?
73 business establishments had a location in this ZIP code in 2023, 2 fewer than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance14
- Retail trade12
- Manufacturing8
- Construction7
- Transportation and warehousing7
- Finance and insurance4
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 51449?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 51451 | Lanesboro | 74 | $44k | 5.9 mi |
| 51433 | Auburn | 567 | $68k | 7.2 mi |
| 51453 | Lohrville | 500 | $87k | 9.7 mi |
| 50579 | Rockwell City | 3,034 | $61k | 10.2 mi |
| 50561 | Lytton | 585 | $67k | 12.0 mi |
| 51443 | Glidden | 1,653 | $79k | 13.7 mi |
| 51401 | Carroll | 11,990 | $71k | 15.5 mi |
| 51452 | Lidderdale | 177 | $61k | 10.2 mi (near) |
| 50050 | Churdan | 712 | $64k | 13.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.