Residential delivery area · Ohio
ZIP Code 45810: Ada, OH
ZIP code 45810 uses the postal name Ada, Ohio and lies mostly in Hardin County (80% of its land), reaching into Hancock County and Allen County (Census 2020 ZIP-county file). About 7,400 people live there (Census Bureau, ACS 2020-2024). Median household income is $63,451 (Census Bureau, ACS 2020-2024). By Census place, 3% of its land lies in Ada; 97% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Ada · its only residential ZIP
- County
- Hardin County (80%); Hancock County (12%); Allen County (8%)
- Census places
- Ada
- House districts
- OH-4 (88%), OH-5 (12%) 119th Congress, by share of land
- State
- Ohio
- Time zone
- Eastern
- Land area
- 65.6 sq mi · 114 people per sq mi
Where is ZIP code 45810?
45810 centers on 40.784°, -83.813° and covers 65.6 square miles of land plus 0.1 of water. It borders 8 ZIP codes: 45835, 45812, 45817, 45850, 45841, 45836, 45843, 43326.
The map draws ZIP code areas only. For the streets inside 45810, 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 45810 compare with the rest of Hardin County?
| Measure | 45810 | In Hardin County | In OH |
|---|---|---|---|
| People (ACS 2020-2024) | 7,449 | 2nd of 16 | 440th of 1,233 |
| Median household income | $64k | 6th of 10 | 500th of 755 |
| Median home value | $168k | 5th of 10 | 541st of 810 |
Its median household income is higher than in 36% of U.S. residential ZIP codes, and it is denser than 56% 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 45810?
The 2020 Census counted 7,840 people in 45810; the ACS, which samples households over 2020-2024, estimates 7,449. Between the 2010 and 2020 censuses its population fell 7.3% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 7,449
- 2020 Census count
- 7,840−7.3% since 2010 (8,460)
- Households
- 2,531
- Median age
- 23.6
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 45810?
Of the 7,449 people the ACS estimates in 45810, 16.5% are under 18 and 11.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (86.1%).
- Under 1816.5%
- 18 to 6472.2%
- 65 and older11.2%
- White, not Hispanic86.1%
- Hispanic or Latino5.7%
- Other or two or more3.9%
- Black, not Hispanic2.4%
- Asian, not Hispanic1.9%
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 45810 earn?
Median household income is $63,451 (ACS 2020-2024), the 6th highest of the 10 ranked ZIP codes in Hardin County. It is not measurably different from 2015-2019 ($66,957 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $63,451
- Income per person
- $29,654
- Below the poverty line
- 19.5%
- Unemployed (of the labor force)
- 6.7%
- Adults 25+ with a bachelor's degree
- 31.8%
- Adjusted gross income per tax return, 2022
- $62,7832,910 returns; wages 70% 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 45810?
FHFA's house price index for 45810, built from repeat sales and appraisals of the same homes, rose 101% from 2015 to 2025 and rose 62% from 2020 to 2025, and moved +10.3% in 2025.
- Median home value (owners' estimate)
- $167,900
- Median gross rent
- $867
- Homes owned by their occupants
- 60.1%
- Housing units
- 2,830
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 45810?
86 business establishments had a location in this ZIP code in 2023, 10 fewer than in 2018; the most are in accommodation and food services (ZIP Code Business Patterns).
- Accommodation and food services19
- Retail trade12
- Other services (except public administration)11
- Finance and insurance8
- Health care and social assistance8
- Professional, scientific, and technical services6
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 45810?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 45835 | Dola | 449 | $76k | 6.3 mi |
| 45812 | Alger | 2,027 | $44k | 7.1 mi |
| 45817 | Bluffton | 5,926 | $77k | 7.5 mi |
| 45850 | Harrod | 3,559 | $85k | 7.8 mi |
| 45841 | Jenera | 924 | $97k | 7.9 mi |
| 45836 | Dunkirk | 1,573 | $56k | 8.9 mi |
| 45843 | Forest | 4,184 | $72k | 14.0 mi |
| 43326 | Kenton | 12,573 | $64k | 14.3 mi |
| 45859 | McGuffey | 384 | $51k | 6.5 mi (near) |
| 45854 | Lafayette | 293 | $53k | 7.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.