Zip Code 53045 — Brookfield, WI

ZIP Code 53045 is associated with Brookfield, WI, in Waukesha County. The listed population estimate is 23,329; estimated density is 624.9 people per square mile. Among records with population estimates, it ranks #9 of 26 in Waukesha County and #83 of 780 in WI.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (43.061000, -88.151450)

Data MetricLocal Statistic
Postal / Zip Code53045
Primary CityBrookfield
State / ProvinceWI
CountyWaukesha
Total Population23,329
Population Density624.9 people/sq mi
TimezoneAmerica/Chicago

How 53045 Compares

MetricZIP 53045Waukesha County recordsWI records
Population estimate23,329416,773 (sum)5,914,913 (sum)
Population Density624.9 /sq mi----
County population rank#9 of 26----
State population rank#83 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 53005Brookfield2.6 mi21,675
ZIP 53122Elm Grove3.4 mi6,508
ZIP 53186Waukesha3.7 mi33,374
ZIP 53007Butler5.2 mi1,859
ZIP 53226Milwaukee5.6 mi18,908

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 →