Residential delivery area · Iowa
ZIP Code 51035: Marcus, IA
ZIP code 51035 uses the postal name Marcus, Iowa and lies entirely in Cherokee County (Census 2020 ZIP-county file). About 1,600 people live there (Census Bureau, ACS 2020-2024). Median household income is $79,338 (Census Bureau, ACS 2020-2024). By Census place, 1% of its land lies in Marcus; 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Marcus · its only residential ZIP
- County
- Cherokee County
- Census places
- Marcus
- House district
- IA-4 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 106.2 sq mi · 15 people per sq mi
Where is ZIP code 51035?
51035 centers on 42.781°, -95.801° and covers 106.2 square miles of land. It borders 7 ZIP codes: 51014, 51050, 51049, 51022, 51046, 51061, 51048.
The map draws ZIP code areas only. For the streets inside 51035, 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 51035 compare with the rest of Cherokee County?
| Measure | 51035 | In Cherokee County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 1,627 | 4th of 15 | 325th of 970 |
| Median household income | $79k | 2nd of 7 | 174th of 396 |
| Median home value | $210k | 1st of 5 | 162nd of 423 |
Its median household income is higher than in 61% of U.S. residential ZIP codes, and it is denser than 22% 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 51035?
The 2020 Census counted 1,535 people in 51035; the ACS, which samples households over 2020-2024, estimates 1,627. Between the 2010 and 2020 censuses its population fell 8.9% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 1,627±230 (90% margin)
- 2020 Census count
- 1,535−8.9% since 2010 (1,685)
- Households
- 647
- Median age
- 42.8
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 51035?
Of the 1,627 people the ACS estimates in 51035, 25.2% are under 18 and 26.6% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (88.4%).
- Under 1825.2%
- 18 to 6448.2%
- 65 and older26.6%
- White, not Hispanic88.4%
- Black, not Hispanic5.7%
- Other or two or more3.7%
- Hispanic or Latino2.2%
- 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 51035 earn?
Median household income is $79,338 (ACS 2020-2024), the 2nd highest of the 7 ranked ZIP codes in Cherokee County. It is not measurably different from 2015-2019 ($72,904 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $79,338±$14,257
- Income per person
- $46,137
- Below the poverty line
- 6.0%
- Unemployed (of the labor force)
- 1.6%
- Adults 25+ with a bachelor's degree
- 25.4%
- Adjusted gross income per tax return, 2022
- $93,242770 returns; wages 49% 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 51035?
FHFA's house price index for 51035, built from repeat sales and appraisals of the same homes, rose 90% from 2015 to 2025 and rose 55% from 2020 to 2025.
- Median home value (owners' estimate)
- $209,700
- Median gross rent
- $642
- Homes owned by their occupants
- 82.8%
- Housing units
- 693
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 51035?
63 business establishments had a location in this ZIP code in 2023, 3 more than in 2018; the most are in other services (except public administration) (ZIP Code Business Patterns).
- Other services (except public administration)11
- Finance and insurance7
- Wholesale trade6
- Retail trade6
- Construction5
- Manufacturing4
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 51035?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 51014 | Cleghorn | 549 | $70k | 4.8 mi |
| 51050 | Remsen | 2,962 | $93k | 7.6 mi |
| 51049 | Quimby | 448 | $57k | 13.1 mi |
| 51022 | Granville | 960 | $97k | 13.8 mi |
| 51046 | Paullina | 1,326 | $84k | 14.0 mi |
| 51061 | Washta | 389 | $49k | 14.4 mi |
| 51048 | Pierson | 435 | $83k | 16.0 mi |
| 51037 | Meriden | 327 | $59k | 8.6 mi (near) |
| 51012 | Cherokee | 6,311 | $70k | 12.4 mi (near) |
| 51045 | Oyens | 66 | $114k | 13.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.