Post Falls, ID GIS Map
Post Falls is a city in Kootenai County, Idaho, with a population of about 38,081. The map below shows its location, boundary and surrounding roads, with federal GIS layers you can turn on for the area.
- County
- Kootenai County
- Population
- 38,081
- Elevation
- 2,182 ft
- Coordinates
- 47.7182, -116.9516
- ZIP codes (2)
- 83854, 83877
- Land area
- 19.1 sq mi
- Time zone
- America/Los Angeles
About Post Falls, ID
Post Falls is a city in Kootenai County, Idaho, United States. It is the gateway city to Northern Idaho off Interstate 90, just west of Coeur d'Alene, and east of Spokane, Washington. The population is an estimated 44,194 in 2022 according to the U.S. Census Bureau estimate, making it Idaho's ninth-largest city and the second largest city in North Idaho behind Coeur d’Alene.
Source: Wikipedia (CC BY-SA 4.0)
Cities Near Post Falls
- Rathdrum, ID7 mi
- Hayden, ID8 mi
- Coeur d'Alene, ID8 mi
- Spokane Valley, WA14 mi
- Spokane, WA22 mi
- Sandpoint, ID43 mi
- Moscow, ID68 mi
- Pullman, WA69 mi
Other Cities in Kootenai County
GIS Data for Post Falls, ID
The Post Falls map loads live federal GIS layers in your browser, so you can check flood zones, terrain, land cover and district boundaries for any address in Post Falls without a separate GIS login. Everything below is drawn from public U.S. government data.
Layers you can turn on
FEMA flood zones
National Flood Hazard Layer — flood insurance rate map zones.
Elevation contours and hillshade
USGS 3DEP terrain, so you can read slope and relief.
Land cover
NLCD land cover classes — forest, developed, wetland, water.
School districts
Census TIGER unified and elementary school district boundaries.
ZIP code and county boundaries
Census TIGER ZCTA and county boundary lines.
Map tools
Measure distance and area
Draw a line or polygon to get length in miles or area in acres.
Sketch and annotate
Add points, lines and shapes on top of the map.
Inspect any point
Click the map to read coordinates, elevation and the layers under your cursor.
Download the map
Save the current view as a PNG image.
Post Falls Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
43,391
Households
16,009
Median household income
$82,183
Median age
35 years
Median home value
$477,400
Median gross rent
$1,469/mo
Owner-occupied homes
64.1%
Bachelor's degree or higher
25.3%
Below poverty level
11.1%
Land area
19.1 sq mi
Population density
2,270 / sq mi
County
ZIP codes in Post Falls
Post Falls Population Growth
Source: U.S. Census Bureau, 2010 Census and Population Estimates Program (Vintage 2024: April 2020 estimates base and July 1, 2024 estimate).
2010 Census
27,574
April 2020 (estimates base)
38,605
July 2024 estimate
45,800
Change 2010-2020
+40.0%
Change 2020-2024
+18.6%
Photos of Post Falls
Hover over a photo to see it larger. Tap on mobile.
Photos from Wikimedia Commons, taken in or near Post Falls. Credits and licenses are shown in the larger view.
Soils of Post Falls
General soil map unit at the city center: Marble variant-Garrison-Avonville
Soil Properties
- Drainage class
- Somewhat excessively drained
- Hydrologic soil group
- B (moderate infiltration)
- Available water storage (0–150 cm)
- 11.3 cm
- Typical slope
- 4%
- Flooding frequency
- None
Soil Components
- Avonville25%
Inceptisols · Andic Haploxerepts
- Garrison20%
Mollisols · Vitrandic Haploxerolls
- Marble variant11%
Entisols · Lamellic Xeropsamments
- Garrison10%
Mollisols · Vitrandic Haploxerolls
- Springdale6%
Inceptisols · Vitrandic Haploxerepts
- Marble5%
Entisols · Lamellic Xeropsamments
Source: USDA NRCS U.S. General Soil Map (STATSGO2). General soil map data (1:250,000 scale) is not suitable for site-specific decisions.
Climate of Post Falls
30-year averages (1991–2020) from the Coeur D'Alene, Id weather station, elevation 2,133 ft, 7.6 miles from the city center.
Warmest month
Jul · avg high 83°F
Coldest month
Jan · avg low 26°F
Annual precipitation
25.4 in
Average Monthly Temperatures (°F)
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 36 | 41 | 48 | 56 | 66 | 72 | 83 | 83 | 74 | 58 | 44 | 36 |
| Avg low °F | 26 | 26 | 31 | 37 | 44 | 51 | 57 | 56 | 48 | 39 | 32 | 26 |
| Precip. in | 3.21 | 2.11 | 2.68 | 1.91 | 2.14 | 2.17 | 0.73 | 0.77 | 0.81 | 2.02 | 3.34 | 3.47 |
Source: NOAA NCEI U.S. Climate Normals, 1991–2020. Conditions at the station may differ from other parts of the city.
Natural Hazard Risk in Post Falls
FEMA National Risk Index ratings for Kootenai County, compared with all U.S. counties.
Overall risk
Score 79 of 100
Expected annual loss
Buildings, population & agriculture
Social vulnerability
Susceptibility to hazard impacts
Community resilience
Ability to prepare & recover
Risk by Hazard
- LandslideRelatively Moderate
- Winter WeatherRelatively High
- Cold WaveRelatively Moderate
- Inland FloodingRelatively Moderate
- Ice StormRelatively High
- Heat WaveRelatively Moderate
- WildfireRelatively Low
- EarthquakeRelatively Low
- AvalancheVery Low
- Strong WindRelatively Low
- LightningRelatively Low
- TornadoVery Low
- HailVery Low
- DroughtVery Low
Source: FEMA National Risk Index (December 2025 release). County-level ratings are relative to other U.S. counties and are not a property-specific assessment.
Post Falls FAQ
What county is Post Falls in?
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Post Falls, Idaho is located in Kootenai County.
What is the population of Post Falls?
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Post Falls has a population of about 38,081, making it the number 9 of the 30 Idaho cities listed on GIS Map.
What is the elevation of Post Falls?
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The elevation of Post Falls is approximately 2,182 feet (665 meters) above sea level at the city center.
What ZIP codes are in Post Falls?
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ZIP codes for Post Falls include 83854, 83877.
What time zone is Post Falls in?
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Post Falls is in the Pacific Time zone (America/Los Angeles).
How far is Post Falls from Boise?
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Post Falls is about 286 miles from Boise, the capital of Idaho, in a straight line.
What cities are near Post Falls?
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Cities near Post Falls include Rathdrum, ID (7 miles); Hayden, ID (8 miles); Coeur d'Alene, ID (8 miles); Spokane Valley, WA (14 miles); Spokane, WA (22 miles).
Local notes for Post Falls, ID
Questions and local knowledge from people who know the area. Every note is read before it appears here.