Residential delivery area · Ohio
ZIP Code 45346: New Madison, OH
ZIP code 45346 uses the postal name New Madison, Ohio and lies entirely in Darke County (Census 2020 ZIP-county file). About 1,700 people live there (Census Bureau, ACS 2020-2024). Median household income is $77,083 (Census Bureau, ACS 2020-2024). By Census place, 1% of its land lies in New Madison; 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- New Madison · its only residential ZIP
- County
- Darke County
- Census places
- New Madison
- Micro area
- Greenville, OH
- House district
- OH-8 119th Congress
- State
- Ohio
- Time zone
- Eastern
- Land area
- 40.2 sq mi · 41 people per sq mi
Where is ZIP code 45346?
45346 centers on 39.982°, -84.710° and covers 40.2 square miles of land plus 0.1 of water. It borders 7 ZIP codes: 45332, 45352, 45347, 45382, 45321, 45331, 45304.
The map draws ZIP code areas only. For the streets inside 45346, 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 45346 compare with the rest of Darke County?
| Measure | 45346 | In Darke County | In OH |
|---|---|---|---|
| People (ACS 2020-2024) | 1,663 | 12th of 23 | 823rd of 1,233 |
| Median household income | $77k | 7th of 14 | 287th of 755 |
| Median home value | $161k | 10th of 13 | 581st of 810 |
Its median household income is higher than in 58% of U.S. residential ZIP codes, and it is denser than 39% 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 45346?
The 2020 Census counted 2,085 people in 45346; the ACS, which samples households over 2020-2024, estimates 1,663. Between the 2010 and 2020 censuses its population fell 9.1% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 1,663±258 (90% margin)
- 2020 Census count
- 2,085−9.1% since 2010 (2,293)
- Households
- 708
- Median age
- 51.3
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 45346?
Of the 1,663 people the ACS estimates in 45346, 20.1% are under 18 and 26.8% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (97.7%).
- Under 1820.1%
- 18 to 6453.1%
- 65 and older26.8%
- White, not Hispanic97.7%
- Asian, not Hispanic1.5%
- Other or two or more0.7%
- Hispanic or Latino0.2%
- 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 45346 earn?
Median household income is $77,083 (ACS 2020-2024), the 7th highest of the 14 ranked ZIP codes in Darke County. It is not measurably different from 2015-2019 ($71,551 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $77,083±$17,917
- Income per person
- $31,643
- Below the poverty line
- 12.8%
- Unemployed (of the labor force)
- 1.3%
- Adults 25+ with a bachelor's degree
- 16.5%
- Adjusted gross income per tax return, 2022
- $64,1481,030 returns; wages 69% 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 45346?
FHFA's house price index for 45346, built from repeat sales and appraisals of the same homes, rose 80% from 2020 to 2025.
- Median home value (owners' estimate)
- $161,300
- Median gross rent
- $790
- Homes owned by their occupants
- 78.8%
- Housing units
- 755
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 45346?
42 business establishments had a location in this ZIP code in 2023, 5 more than in 2018; the most are in other services (except public administration) (ZIP Code Business Patterns).
- Other services (except public administration)8
- Construction6
- Retail trade6
- Transportation and warehousing6
- Accommodation and food services6
- Manufacturing3
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 45346?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 45332 | Hollansburg | 716 | $77k | 3.7 mi |
| 45352 | Palestine | 173 | $63k | 5.0 mi |
| 45347 | New Paris | 4,095 | $63k | 7.2 mi |
| 45382 | West Manchester | 1,154 | $96k | 7.6 mi |
| 45321 | Eldorado | 1,272 | $69k | 8.2 mi |
| 45331 | Greenville | 22,356 | $54k | 8.6 mi |
| 45304 | Arcanum | 7,599 | $78k | 9.8 mi |
| 47341 | Fountain City, IN | 2,460 | $82k | 9.6 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.