🇺🇸 United States ZIP Code

STANDARD

45503

Springfield

ZIP Code 45503 is a standard zip code serving Springfield, Springfield, Ohio (OH), in Clark County, United States. It has an estimated population of 32,999 with a median household income of $44,541. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 39.952800
Longitude: -83.780400

Geographic Details

Land Area: 17.34 mi²
Water Area: 1.34 mi²
Population Density: 1903.0 people per mi² (80th percentile)
Bounding Box: 40.010394°N, 39.922220°S, -83.713726°E, -83.820504°W

With 32,999 residents spread across 17.34 square miles, this area has a population density of 1903.0 people per square mile.

Demographics

32,999

Population

90th percentile

$44,541

Median Income

40th percentile

$109,700

Median Home Value

40th percentile

17.34 mi²

Land Area

The median household income in 45503 is $44,541, and the median home value is $109,700.

Housing

15,404

Total Units

13,995

Occupied Units

90.9%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Springfield, OH.

45501

Springfield

45502

Springfield

45504

Springfield

45505

Springfield

45506

Springfield

Similar ZIP Codes in Ohio

ZIP codes with similar median household income in Ohio.

43903

Amsterdam

$38,969

43964

Toronto

$44,468

45168

Russellville

$51,058

45303

Ansonia

$40,455

43977

Flushing

$42,930

45745

Lower Salem

$45,417

43462

Rudolph

$49,414

45761

Millfield

$43,281

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.