Zip Code 45011
Fairfield, Ohio — Butler County
📍 ZIP code 45011 is in Fairfield, Butler County, Ohio.
ZIP code 45011 is located in Fairfield, Butler County, Ohio. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 74,636. The area code for ZIP code 45011 is 513.
Quick Answer
Zip code 45011 is in Fairfield, Ohio (Butler County). It has a population of 74,636, median household income of $90,360, and median home value of $272,000.
Population
74,636
Income
$90,360
Home Value
$272,000
Climate
87°F / 22°F
About Zip Code 45011
Zip code 45011 is located in Fairfield, Ohio, within Butler County. Home to approximately 74,636 residents, this area sits at an elevation of 604 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 513.
The median household income is $90,360 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $272,000, and the cost of living index is 100 (0% below the national average of 100).
Summers average a high of 87°F while winters drop to 22°F. The area receives about 41 in of rain and 8 in of snow annually. The zip code covers 60.5 square miles of land area and 0.7 square miles of water.
Key Statistics
74,636
$90,360
$272,000
Eastern (EST/EDT)
513
604 ft
60.5 sq mi
39
28,470
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Compare With Nearby Zip Codes
| Metric | 45011 | 45062 | 45067 | 45015 | 45044 | 45069 |
|---|---|---|---|---|---|---|
| City | Fairfield, OH | Seven Mile, OH | Trenton, OH | Fairfield, OH | Middletown, OH | West Chester, OH |
| Population | 74,636 | 667 | 15,328 | 11,102 | 54,452 | 55,635 |
| Median Income | $90,360 | $53,552 | $88,662 | $45,543 | $71,942 | $115,539 |
| Home Value | $272,000 | $144,400 | $214,400 | $116,600 | $230,400 | $314,300 |
| Cost of Living | 100 | 60 | 87 | 60 | 82 | 122 |
| Median Age | 39 | 50.5 | 35.3 | 36.4 | 36.6 | 38.9 |
Cost of Living
100 = National Average. Fairfield's cost of living is 0% below the national average.
vs. State Avg
Below
Affordability
Affordable
Income-to-Home
3.0x
Demographics
Zip code 45011 has a population of 74,636 people with a median age of 39. There are 28,470 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Fairfield (45011) population trend from 2010 to 2024
↑ 89.0%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
87°F
22°F
41 in
8 in
Fairfield experiences warm summers with average highs around 87°F. Winters are cool with lows averaging 22°F. The area receives about 8 in of snow per year.
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Housing & Economy
Median Home Value
$272,000
Median Household Income
$90,360
With 28,470 housing units across 60.5 square miles, 45011 has a housing density of 471 units per square mile. The home price-to-income ratio is 3.0x.
Location & Geography
Latitude
39.4266°
Longitude
-84.4976°
Land Area
60.5 sq mi
Water Area
0.7 sq mi
Nearby Zip Codes
Zip codes closest to 45011 (Fairfield, OH) with distances:
All Zip Codes in Fairfield, OH
Other zip codes serving Fairfield:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 45011's $90,360. A way to compare Fairfield to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 45011 (Fairfield, OH). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Fairfield, Ohio?
Fairfield, Ohio uses zip code 45011 along with 2 other zip codes.
What county is zip code 45011 in?
Zip code 45011 is located in Butler County, Ohio.
What is the population of zip code 45011?
The population of zip code 45011 is 74,636 with a median age of 39.
Is 45011 in Fairfield, Ohio?
Yes, zip code 45011 is in Fairfield, Butler County, Ohio. The area code is 513.
Frequently Asked Questions
What city is zip code 45011 in?
Zip code 45011 is in Fairfield, Ohio. It is part of Butler County and uses the Eastern (EST/EDT) timezone.
What is zip code 45011?
Zip code 45011 is a U.S. postal code in Fairfield, Ohio (Butler County). It has a population of 74,636 and covers 60.5 square miles.
What is the population of zip code 45011?
The population of zip code 45011 (Fairfield, OH) is 74,636 with a median age of 39. There are approximately 28,470 housing units in this area.
What is the median income in zip code 45011?
The median household income in zip code 45011 (Fairfield, OH) is $90,360 per year. The cost of living index is 100 (100 = national average).
What is the average home price in zip code 45011?
The median home value in zip code 45011 (Fairfield, OH) is $272,000. The cost of living index is 100 compared to the national average of 100.
What county is zip code 45011 in?
Zip code 45011 is located in Butler County, Ohio. The primary city is Fairfield.
What is the area code for zip code 45011?
Zip code 45011 in Fairfield, OH uses area code 513. It is located in the Eastern (EST/EDT) timezone.
Is zip code 45011 a good place to live?
Zip code 45011 (Fairfield, OH) has a cost of living index of 100 (100 = national average), a median household income of $90,360, and median home values of $272,000. The median age is 39. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 45011?
The cost of living index for zip code 45011 (Fairfield, OH) is 100, where 100 represents the national average. This area is at the national average. Median home value: $272,000.
What schools serve zip code 45011?
Zip code 45011 in Fairfield, Ohio is served by the local school district of Butler County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.