Residential delivery area · Ohio
ZIP Code 43342: Prospect, OH
ZIP code 43342 uses the postal name Prospect, Ohio and lies mostly in Marion County (89% of its land), reaching into Union County and Delaware County (Census 2020 ZIP-county file). About 3,800 people live there (Census Bureau, ACS 2020-2024). Median household income is $84,803 (Census Bureau, ACS 2020-2024). By Census place, 2% of its land lies in Prospect; 98% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Prospect · its only residential ZIP
- County
- Marion County (89%); Union County (7%); Delaware County (5%)
- Census places
- Prospect
- Micro area
- Marion, OH
- House district
- OH-4 119th Congress
- State
- Ohio
- Time zone
- Eastern
- Land area
- 42.7 sq mi · 90 people per sq mi
Where is ZIP code 43342?
43342 centers on 40.471°, -83.184° and covers 42.7 square miles of land plus 0.1 of water. It borders 5 ZIP codes: 43322, 43066, 43356, 43344, 43302.
The map draws ZIP code areas only. For the streets inside 43342, 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 43342 compare with the rest of Marion County?
| Measure | 43342 | In Marion County | In OH |
|---|---|---|---|
| People (ACS 2020-2024) | 3,836 | 4th of 12 | 600th of 1,233 |
| Median household income | $85k | 1st of 5 | 200th of 755 |
| Median home value | $176k | not ranked | not ranked |
43342's median home value is not ranked: its 90% margin of error (±$54,507) is more than a quarter of the figure ($176,100). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
Its median household income is higher than in 68% of U.S. residential ZIP codes, and it is denser than 52% 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 43342?
The 2020 Census counted 3,256 people in 43342; the ACS, which samples households over 2020-2024, estimates 3,836. Between the 2010 and 2020 censuses its population grew 0.9% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 3,836±658 (90% margin)
- 2020 Census count
- 3,256+0.9% since 2010 (3,228)
- Households
- 1,496
- Median age
- 39.2
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 43342?
Of the 3,836 people the ACS estimates in 43342, 18.2% are under 18 and 21.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (98.1%).
- Under 1818.2%
- 18 to 6460.5%
- 65 and older21.3%
- White, not Hispanic98.1%
- Other or two or more0.9%
- Asian, not Hispanic0.5%
- Hispanic or Latino0.5%
- Black, 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 43342 earn?
Median household income is $84,803 (ACS 2020-2024), the highest of the 5 ranked ZIP codes in Marion County. It is not measurably different from 2015-2019 ($77,898 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $84,803±$16,482
- Income per person
- $45,577
- Below the poverty line
- 7.6%
- Unemployed (of the labor force)
- 1.6%
- Adults 25+ with a bachelor's degree
- 24.4%
- Adjusted gross income per tax return, 2022
- $73,1551,700 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 43342?
FHFA's house price index for 43342, built from repeat sales and appraisals of the same homes, rose 99% from 2015 to 2025 and rose 60% from 2020 to 2025, and moved +2.0% in 2025.
- Median home value (owners' estimate)
- $176,100
- Median gross rent
- $950
- Homes owned by their occupants
- 88.2%
- Housing units
- 1,569
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 43342?
41 business establishments had a location in this ZIP code in 2023, 2 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction8
- Retail trade5
- Administrative and support and waste management and remediation services5
- Other services (except public administration)5
- Manufacturing4
- Transportation and warehousing3
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 43342?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 43322 | Green Camp | 437 | $56k | 4.4 mi |
| 43066 | Radnor | 1,368 | $129k | 4.8 mi |
| 43356 | Waldo | 1,120 | $93k | 7.6 mi |
| 43344 | Richwood | 6,173 | $81k | 8.9 mi |
| 43302 | Marion | 53,702 | $55k | 9.3 mi |
| 43036 | Magnetic Springs | 359 | $78k | 9.2 mi (near) |
| 43341 | New Bloomington | 953 | $55k | 11.0 mi (near) |
| 43003 | Ashley | 3,723 | $70k | 12.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.