ZIP code 45820: Cairo, OH
45820 is a ZIP code in Cairo, Ohio, mainly in Allen County, part of the Lima, OH metro area. About 581 people live here.
- Population
- 581
- Median household income
- $83,125
- Typical home value
- $142,700+1.5% in 12 months
- Median rent
- $1,023gross, per month
- Median age
- 35.9
- Homeowners
- 86.4%of occupied homes
Shaded: ZIP code 45820's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 45820 details
| City | Cairo |
|---|---|
| State | Ohio |
| County | Allen County |
| Metro area | Lima, OH |
| Time zone | Eastern Time (UTC−5), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 0.3 sq mi |
| Population density | 2,075 people per sq mi |
| Bachelor's degree or higher | 20.4% of adults 25+ |
| Average commute | 17.9 minutes |
| Center coordinates | 40.83075, -84.08449 |
ZIP codes near 45820
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 45802 | Lima, OH | 4.4 mi | — |
| 45893 | Vaughnsville, OH | 4.7 mi | 160 |
| 45801 | Lima, OH | 4.8 mi | 21,739 |
| 45807 | Lima, OH | 4.9 mi | 11,774 |
| 45809 | Gomer, OH | 5.3 mi | 45 |
| 45830 | Columbus Grove, OH | 5.4 mi | 5,199 |
| 45808 | Beaverdam, OH | 5.8 mi | 350 |
| 45805 | Lima, OH | 8.2 mi | 24,387 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Buying a home in 45820?
A typical home in ZIP code 45820 is worth about $142,700 (Zillow Home Value Index). The median household here earns $83,125 a year. See what buying here would cost per month, with Ohio average taxes and insurance filled in.
Monthly payment for a $142,700 homeWhat can a $83,125 income afford?Rental property numbers
About ZIP code 45820
What city is ZIP code 45820?
ZIP code 45820 is in Cairo, OH, in Allen County.
What county is ZIP code 45820 in?
45820 is mainly in Allen County, Ohio.
What is the population of ZIP code 45820?
About 581 people live in ZIP code 45820, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 45820 in?
45820 is in Eastern Time (UTC−5). It observes daylight saving time.