Home > ID > Kootenai County > Post Falls > Zip 83854

Zip Code 83854 — Post Falls, ID

83854 is a ZIP Code associated with Post Falls, ID, located within Kootenai. The postal region supports an estimated population of 54,851 residents across Data Pending housing units, with a population density of 273.0 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (47.726700, -116.975110)

Data MetricLocal Statistic
Postal / Zip Code83854
Primary CityPost Falls
State / ProvinceID
CountyKootenai
Total Population54,851
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density273.0 people/sq mi
TimezoneAmerica/Los_Angeles

How 83854 Compares

MetricZIP 83854Kootenai CountyID State Average
Population54,851184,2281,933,906
Median IncomeData PendingN/AN/A
Population Density273.0 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 83815Coeur D Alene8.7 mi41,405N/A
Zip 83858Rathdrum9.3 mi20,137N/A
Zip 83814Coeur D Alene11.8 mi26,059N/A
Zip 83835Hayden15.0 mi24,238N/A
Zip 83869Spirit Lake18.0 mi5,504N/A

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 →