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Zip Code 53511 — Beloit, WI

ZIP Code 53511 is associated with Beloit, WI, in Rock County. The listed population estimate is 48,701; estimated density is 163.7 people per square mile. Among records with population estimates, it ranks #1 of 13 in Rock County and #5 of 780 in WI.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (42.546270, -89.097920)

Data MetricLocal Statistic
Postal / Zip Code53511
Primary CityBeloit
State / ProvinceWI
CountyRock
Total Population48,701
Population Density163.7 people/sq mi
TimezoneAmerica/Chicago

How 53511 Compares

MetricZIP 53511Rock County recordsWI records
Population estimate48,701170,414 (sum)5,914,913 (sum)
Population Density163.7 /sq mi----
County population rank#1 of 13----
State population rank#5 of 780----

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 WI

ZIP CodeCityDistancePopulation estimate
ZIP 53501Afton4.3 mi165
ZIP 53576Orfordville9.0 mi2,131
ZIP 53548Janesville10.0 mi19,916
ZIP 53537Footville10.4 mi752
ZIP 53546Janesville10.5 mi29,867

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 →