🇺🇸 United States ZIP Code

STANDARD

45042

Middletown

ZIP Code 45042 is a standard zip code serving Middletown, Middletown, Ohio (OH), in Butler County, United States. It has an estimated population of 26,451 with a median household income of $48,481. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Ohio (OH)
County: Butler
City: Middletown
Timezone: America/New_York

Coordinates

Latitude: 39.532100
Longitude: -84.389600

Geographic Details

Land Area: 49.52 mi²
Water Area: 0.41 mi²
Population Density: 534.0 people per mi² (70th percentile)
Bounding Box: 39.604091°N, 39.488668°S, -84.321780°E, -84.554573°W

With 26,451 residents spread across 49.52 square miles, this area has a population density of 534.0 people per square mile.

Demographics

26,451

Population

85th percentile

$48,481

Median Income

50th percentile

$128,200

Median Home Value

50th percentile

49.52 mi²

Land Area

The median household income in 45042 is $48,481, and the median home value is $128,200.

Housing

11,895

Total Units

10,766

Occupied Units

90.5%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Middletown, OH.

45044

Middletown

Similar ZIP Codes in Ohio

ZIP codes with similar median household income in Ohio.

45669

Proctorville

$48,768

43512

Defiance

$48,614

43773

Quaker City

$41,236

45806

Lima

$53,764

43356

Waldo

$53,904

45850

Harrod

$46,800

43623

Toledo

$45,513

45177

Wilmington

$44,059

Frequently Asked Questions

What information is available for each ZIP code?

Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).

What are the different types of ZIP codes?

There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.

How often is ZIP code data updated?

ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.

What is population density and why does it matter?

Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.

How are ZIP code boundaries determined?

ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.

What does median household income tell me about a ZIP code?

Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.