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Where 45810 is
Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.
- 🔢 Type 45810 into a pocket calculator and turn it upside down: OIBSh — not quite a word, sorry.
- ➕ As a number, 45,810 = 2 × 3 × 3 × 5 × 509. Its digits add up to 18, a total 2,332 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1011001011110010 - 🏠 Its numerical neighbours: 45809 (Gomer, OH, 20 mi away) and 45812 (Alger, OH, 7 mi away).
- 🔄 Backwards, 45810 becomes 01854 — and that is a real ZIP code: Lowell, MA, 655 miles away.
- 👥 59 other ZIP codes are made of exactly the same digits (01845, 01854, 04851, 05148, 05481, 05841, …). The farthest-flung twin is 85041 in Phoenix, AZ, 1,633 miles away.
- 🧭 Farther north than 64% of all ZIP codes, and farther east than 60%.
- 🎯780 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 45810 and you would come out at 40.78°S, 96.19°E — 1,249 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 06m of daylight. Shortest: 9h 15m.
- 📏 At 65.6 square miles of land, 45810 is bigger than 67% of ZIP codes — room for about 50 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 7,449This ZIP7,449 |
|---|---|
| Households | 2,531This ZIP2,531 |
| Housing units | 2,830This ZIP2,830 |
| Median age | 23.6This ZIP23.6Ohio39.7US 38.9 |
| Median household income | $63,451This ZIP$63,451Ohio$71,389US $80,734 |
| Median home value | $167,900This ZIP$167,900Ohio$214,800US $332,700 |
| Median gross rent | $867This ZIP$867Ohio$1,034US $1,413 |
| Bachelor's degree or higher | 31.8%This ZIP31.8% |
| Mean commute | 22.0 minThis ZIP22.0 min |
| Population density | 113.6 / sq miThis ZIP113.6 / sq mi |
Business and tax activity
| Business establishments | 86This ZIP86 |
|---|---|
| Employees | 2,496This ZIP2,496 |
| Annual payroll | $74,813,000This ZIP$74,813,000 |
| Tax returns filed | 2,910This ZIP2,910 |
| Total adjusted gross income | $182,698,000This ZIP$182,698,000 |
Land area
| Land area | 65.56 sq miThis ZIP65.56 sq mi |
|---|---|
| Water area | 0.07 sq miThis ZIP0.07 sq mi |
Counties 45810 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Hardin County | 79.8% |
| Hancock County | 12.2% |
| Allen County | 8.1% |
Other place names in 45810
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 45810
| ZIP | City | Distance |
|---|---|---|
45835 | Dola, OH | 6.3 mi |
45859 | Mc Guffey, OH | 6.5 mi |
45812 | Alger, OH | 7.1 mi |
45854 | Lafayette, OH | 7.5 mi |
45817 | Bluffton, OH | 7.5 mi |
45850 | Harrod, OH | 7.8 mi |
45841 | Jenera, OH | 7.9 mi |
45836 | Dunkirk, OH | 8.9 mi |
45808 | Beaverdam, OH | 9.0 mi |
45897 | Williamstown, OH | 9.1 mi |
Find every ZIP code within 10 miles of 45810 →
Questions about this ZIP code
Where is ZIP code 45810?
45810 is in Ada, Ohio, in Hardin County. Its published point location is 40.7844, -83.8133.
What county is 45810 in?
45810 spans 3 counties: Hardin County, Hancock County and Allen County. Most of it falls in Hardin County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.
What area code is 45810?
Ada uses area codes 419 and 567, from NANPA's telephone records.
What time zone is 45810 in?
45810 uses America/New_York.
How many people live in 45810?
About 7,449 people live in ZIP code 45810, in 2,531 households, at 113.6 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What is the median household income in 45810?
$63,451 a year, against $71,389 across Ohio.
What ZIP codes are near 45810?
The closest are 45835 (6.3 mi), 45859 (6.5 mi), 45812 (7.1 mi), 45854 (7.5 mi) and 45817 (7.5 mi).
Is 45810 a PO Box ZIP code?
45810 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “45810 ZIP Code — Ada, Ohio (Hardin County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/45810
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/45810.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.