🇺🇸 United States ZIP Code

STANDARD

45638

Ironton

ZIP Code 45638 is a standard zip code serving Ironton, Ironton, Ohio (OH), in Lawrence County, United States. It has an estimated population of 21,635 with a median household income of $37,655. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 38.529400
Longitude: -82.665400

Geographic Details

Land Area: 77.53 mi²
Water Area: 1.45 mi²
Population Density: 279.0 people per mi² (65th percentile)
Bounding Box: 38.658347°N, 38.476007°S, -82.519959°E, -82.829797°W

With 21,635 residents spread across 77.53 square miles, this area has a population density of 279.0 people per square mile.

Demographics

21,635

Population

80th percentile

$37,655

Median Income

20th percentile

$85,100

Median Home Value

20th percentile

77.53 mi²

Land Area

The median household income in 45638 is $37,655, and the median home value is $85,100. This is below the national average for household income.

Housing

9,785

Total Units

8,857

Occupied Units

90.5%

Occupancy Rate

Similar ZIP Codes in Ohio

ZIP codes with similar median household income in Ohio.

43326

Kenton

$39,402

44511

Youngstown

$39,966

43730

Corning

$39,306

43973

Freeport

$34,342

43055

Newark

$41,981

45874

Ohio City

$42,917

43731

Crooksville

$36,559

44905

Mansfield

$41,196

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.