Zip Code 62703 — Springfield, IL

ZIP Code 62703 is associated with Springfield, IL, in Sangamon County. The listed population estimate is 28,922; estimated density is 748.6 people per square mile. Among records with population estimates, it ranks #3 of 25 in Sangamon County and #151 of 1,390 in IL.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (39.762760, -89.631060)

Data MetricLocal Statistic
Postal / Zip Code62703
Primary CitySpringfield
State / ProvinceIL
CountySangamon
Total Population28,922
Population Density748.6 people/sq mi
TimezoneAmerica/Chicago

How 62703 Compares

MetricZIP 62703Sangamon County recordsIL records
Population estimate28,922194,839 (sum)12,694,745 (sum)
Population Density748.6 /sq mi----
County population rank#3 of 25----
State population rank#151 of 1,390----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in IL

ZIP CodeCityDistancePopulation estimate
ZIP 62712Springfield2.7 mi10,045
ZIP 62706Springfield2.7 miN/A
ZIP 62701Springfield2.8 mi1,205
ZIP 62704Springfield3.0 mi40,046
ZIP 62702Springfield4.3 mi31,033

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →