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Zip Code 61571 — Washington, IL

ZIP Code 61571 is associated with Washington, IL, in Tazewell County. The listed population estimate is 24,470; estimated density is 176.7 people per square mile. Among records with population estimates, it ranks #2 of 16 in Tazewell County and #192 of 1,390 in IL.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (40.705060, -89.422940)

Data MetricLocal Statistic
Postal / Zip Code61571
Primary CityWashington
State / ProvinceIL
CountyTazewell
Total Population24,470
Population Density176.7 people/sq mi
TimezoneAmerica/Chicago

How 61571 Compares

MetricZIP 61571Tazewell County recordsIL records
Population estimate24,470136,384 (sum)12,694,745 (sum)
Population Density176.7 /sq mi----
County population rank#2 of 16----
State population rank#192 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 61611East Peoria5.9 mi24,040
ZIP 61550Morton6.6 mi18,792
ZIP 61548Metamora7.2 mi12,037
ZIP 61733Deer Creek7.2 mi984
ZIP 61603Peoria8.0 mi15,356

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 →