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ZIP Code 99140, Washington

ZIP Code 99140 profile, demographic data, and geographic information.

ZCTA5 99140 is a 5-digit ZIP Code area located in Ferry County, Washington. As of official census estimates, it has a reported population of 486. The land area covers 443.11 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population 486 ±101 2020-2024 / Census ACS 5-Year 2024
Median Age 51.5 yrs ±5.4 2020-2024 / Census ACS 5-Year 2024
Total Households 216 ±49 2020-2024 / Census ACS 5-Year 2024
Source: U.S. Census Bureau (PEP, ACS 5-Year).

Housing & Real Estate Profile

Housing Metric Estimate / Value Margin of Error
Total Housing Units 246 ±46
Occupied Housing Units 216 ±49
Vacant Housing Units 30 ±9
Median Home Value $140,700 ±$15,682
Median Gross Rent $450 ±$132
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $53,529 ±$2,433
Per Capita Income $26,752 ±$4,142
Poverty Rate 21.2% ±10.6%
Population Below Poverty Level 103 ±56
Unemployment Rate 7% ±4.5%
Civilian Labor Force, Employed 172 ±44
Broadband Internet Rate 74.1% ±9.8%
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF
Government Unit Unit Type Jurisdiction Role Contact / Address
GUS Population: 7,543 (2024)
ID: 136094
County Official County Government
Contact: CHAIRMAN
290 E TESSIE AVE, REPUBLIC WA 99166-8724

Education

Listing 3 local institutions (NCES 2024-2025) External reference via K12Guides
Institution Type Grades Location
Regular School Nearby KG-06 KELLER, WA
Regular School Nearby PK-06 Coulee Dam, WA
Regular School Nearby 07-12 COULEE DAM, WA
Source: k12guides.com.

Community Facilities & Infrastructure

Displaying 3 civic institutions across 1 datasets queried CMS • IPEDS • IMLS
Facility Name Category Relationship Address / Location Contact
GRAND COULEE PUBLIC LIBRARY
Library 20.4 mi away 225 FEDERAL ST, GRAND COULEE, WA, 99133
(509) 663-0972
HUNTERS PUBLIC LIBRARY
Library 20.4 mi away 5014 COLUMBIA RIVER RD., BLDG. #11, HUNTERS, WA, 99129
(509) 722-3877
WILBUR (HESSELTINE) PUBLIC LIBRARY
Library 24.5 mi away 14 NW DIVISION, WILBUR, WA, 99185
(509) 647-5828
Distances calculated from authoritative source coordinates. Source: CMS, IMLS, NCES IPEDS.

Climate & Weather Observations

NOAA Monthly Climate Normals

Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at COULEE DAM 1 SW, WA US, located 19.6 miles from ZCTA5 99140. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 32.7° 23.3° 28.0° 1.15" —
February 39.5° 25.3° 32.4° 0.88" —
March 50.7° 31.5° 41.1° 1.07" —
April 60.6° 37.7° 49.2° 0.97" —
May 70.8° 45.8° 58.3° 1.11" —
June 77.8° 52.0° 64.9° 1.15" —
July 87.6° 59.4° 73.5° 0.49" —
August 86.9° 58.3° 72.6° 0.33" —
September 76.8° 50.5° 63.7° 0.36" —
October 60.2° 40.1° 50.1° 0.94" —
November 43.0° 30.9° 37.0° 1.20" —
December 33.1° 23.9° 28.5° 1.42" —
Source: NOAA U.S. Climate Normals (1991–2020).

Local Weather Forecast

Weather forecast data is currently unavailable in the local cache.

Nearby Cities & Communities

Listing adjacent communities by spatial proximity (miles) Proximity discovery
Community Name Classification Distance Population
Keller CDP CDP 3.7 mi —
Nespelem town Town 15.5 mi —
Elmer City town Town 16.1 mi —
Twin Lakes CDP CDP 16.8 mi —
Coulee Dam town Town 18.2 mi —
Nespelem Community CDP CDP 18.9 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 99140. • Official Source Dataset →
  2. Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
  3. Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
  4. Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.