Zip Code 45042
Middletown, Ohio — Butler County
📍 ZIP code 45042 is in Middletown, Butler County, Ohio.
ZIP code 45042 is located in Middletown, Butler County, Ohio. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 28,217. The area code for ZIP code 45042 is 513.
Quick Answer
Zip code 45042 is in Middletown, Ohio (Butler County). It has a population of 28,217, median household income of $66,732, and median home value of $192,400.
Population
28,217
Income
$66,732
Home Value
$192,400
Climate
86°F / 20°F
About Zip Code 45042
Zip code 45042 is located in Middletown, Ohio, within Butler County. Home to approximately 28,217 residents, this area sits at an elevation of 882 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 513.
The median household income is $66,732 per year, which is below the national median of $70,784. Homes in this zip code have a median value of $192,400, and the cost of living index is 71 (29% below the national average of 100).
Summers average a high of 86°F while winters drop to 20°F. The area receives about 42 in of rain and 10 in of snow annually. The zip code covers 49.3 square miles of land area and 0.7 square miles of water.
Key Statistics
28,217
$66,732
$192,400
Eastern (EST/EDT)
513
882 ft
49.3 sq mi
41.1
12,324
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Compare With Nearby Zip Codes
| Metric | 45042 | 45327 | 45044 | 45067 | 45005 | 45070 |
|---|---|---|---|---|---|---|
| City | Middletown, OH | Germantown, OH | Middletown, OH | Trenton, OH | Franklin, OH | West Elkton, OH |
| Population | 28,217 | 8,949 | 54,452 | 15,328 | 31,906 | 146 |
| Median Income | $66,732 | $84,538 | $71,942 | $88,662 | $74,239 | $64,375 |
| Home Value | $192,400 | $198,400 | $230,400 | $214,400 | $201,200 | $96,000 |
| Cost of Living | 71 | 84 | 82 | 87 | 76 | 60 |
| Median Age | 41.1 | 40.2 | 36.6 | 35.3 | 40 | 33 |
Cost of Living
100 = National Average. Middletown's cost of living is 29% below the national average.
vs. State Avg
Below
Affordability
Very Affordable
Income-to-Home
2.9x
Demographics
Zip code 45042 has a population of 28,217 people with a median age of 41.1. There are 12,324 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Middletown (45042) population trend from 2010 to 2024
↑ 94.5%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
86°F
20°F
42 in
10 in
Middletown experiences warm summers with average highs around 86°F. Winters are cold with lows averaging 20°F. The area receives about 10 in of snow per year.
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Housing & Economy
Median Home Value
$192,400
Median Household Income
$66,732
With 12,324 housing units across 49.3 square miles, 45042 has a housing density of 250 units per square mile. The home price-to-income ratio is 2.9x.
Location & Geography
Latitude
39.5569°
Longitude
-84.4202°
Land Area
49.3 sq mi
Water Area
0.7 sq mi
Nearby Zip Codes
Zip codes closest to 45042 (Middletown, OH) with distances:
All Zip Codes in Middletown, OH
Other zip codes serving Middletown:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 45042's $66,732. A way to compare Middletown 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 45042 (Middletown, 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 Middletown, Ohio?
Middletown, Ohio uses zip code 45042 along with 1 other zip codes.
What county is zip code 45042 in?
Zip code 45042 is located in Butler County, Ohio.
What is the population of zip code 45042?
The population of zip code 45042 is 28,217 with a median age of 41.1.
Is 45042 in Middletown, Ohio?
Yes, zip code 45042 is in Middletown, Butler County, Ohio. The area code is 513.
Frequently Asked Questions
What city is zip code 45042 in?
Zip code 45042 is in Middletown, Ohio. It is part of Butler County and uses the Eastern (EST/EDT) timezone.
What is zip code 45042?
Zip code 45042 is a U.S. postal code in Middletown, Ohio (Butler County). It has a population of 28,217 and covers 49.3 square miles.
What is the population of zip code 45042?
The population of zip code 45042 (Middletown, OH) is 28,217 with a median age of 41.1. There are approximately 12,324 housing units in this area.
What is the median income in zip code 45042?
The median household income in zip code 45042 (Middletown, OH) is $66,732 per year. The cost of living index is 71 (100 = national average).
What is the average home price in zip code 45042?
The median home value in zip code 45042 (Middletown, OH) is $192,400. The cost of living index is 71 compared to the national average of 100.
What county is zip code 45042 in?
Zip code 45042 is located in Butler County, Ohio. The primary city is Middletown.
What is the area code for zip code 45042?
Zip code 45042 in Middletown, OH uses area code 513. It is located in the Eastern (EST/EDT) timezone.
Is zip code 45042 a good place to live?
Zip code 45042 (Middletown, OH) has a cost of living index of 71 (100 = national average), a median household income of $66,732, and median home values of $192,400. The median age is 41.1. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 45042?
The cost of living index for zip code 45042 (Middletown, OH) is 71, where 100 represents the national average. This area is below the national average. Median home value: $192,400.
What schools serve zip code 45042?
Zip code 45042 in Middletown, 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.