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ZIP Code 99345, Washington

ZIP Code 99345 profile, demographic data, and geographic information.

ZCTA5 99345 is a 5-digit ZIP Code area located in Benton County, Washington. As of official census estimates, it has a reported population of 162. The land area covers 126.36 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population 162 ±72 2020-2024 / Census ACS 5-Year 2024
Median Age 43 yrs ±22.8 2020-2024 / Census ACS 5-Year 2024
Total Households 72 ±35 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 77 ±37
Occupied Housing Units 72 ±35
Vacant Housing Units 5 ±7
Median Home Value $415,500 ±$208,846
Median Gross Rent $488 ±$40
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $102,500 ±$84,697
Per Capita Income $40,370 ±$17,845
Poverty Rate 11.1% ±10.6%
Population Below Poverty Level 18 ±19
Unemployment Rate 3.4% ±6.6%
Civilian Labor Force, Employed 84 ±54
Broadband Internet Rate 72.2% ±27.3%
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: 218,190 (2024)
ID: 183782
County Official County Government
Contact: FINANCE MANAGER
PO BOX 190, PROSSER WA 99350-0190

Education

Listing 8 local institutions (NCES 2024-2025) External reference via K12Guides
Institution Type Grades Location
Regular School Nearby KG-03 Irrigon, OR
Regular School Nearby 04-06 Irrigon, OR
Regular School Nearby 07-12 Irrigon, OR
Alternative School Nearby KG-12 Irrigon, OR
Regular School Nearby KG-08 Paterson, WA
Regular School Nearby 07-12 Boardman, OR
Regular School Nearby KG-06 Boardman, OR
Regular School Nearby 04-06 Boardman, OR
Source: k12guides.com.

Community Facilities & Infrastructure

Displaying 7 civic institutions across 1 datasets queried CMS • IPEDS • IMLS
Facility Name Category Relationship Address / Location Contact
OREGON TRAIL LIBRARY DISTRICT
Library 7.2 mi away 200 S MAIN ST, BOARDMAN, OR, 97818
(541) 481-3365
IRRIGON BRANCH LIBRARY
Library 8.1 mi away 490 NORTH MAIN AVE., IRRIGON, OR, 97844
(541) 922-0138
UMATILLA PUBLIC LIBRARY
Library 15.0 mi away 700 6TH ST, UMATILLA, OR, 97882
(541) 922-5704
HERMISTON PUBLIC LIBRARY
Library 18.8 mi away 235 E GLADYS AVE, HERMISTON, OR, 97838
(541) 567-2882
PROSSER BRANCH LIBRARY
Library 19.5 mi away 902 7TH STREET, PROSSER, WA, 99350
(509) 786-2533
STANFIELD PUBLIC LIBRARY
Library 23.5 mi away 180 WEST COE AVE, STANFIELD, OR, 97875
(541) 449-1254
BENTON CITY BRANCH LIBRARY
Library 24.5 mi away 810 HORNE ROAD, BENTON CITY, WA, 99320
(509) 588-6471
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 BOARDMAN, OR US, located 6.2 miles from ZCTA5 99345. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 42.0° 28.7° 35.3° 1.28" 1.2"
February 48.3° 29.5° 38.9° 0.92" 1.4"
March 57.6° 33.8° 45.7° 0.70" 0.2"
April 66.1° 39.8° 53.0° 0.64" 0.0"
May 75.2° 47.8° 61.5° 0.80" 0.0"
June 81.7° 54.6° 68.1° 0.55" 0.0"
July 91.3° 60.0° 75.7° 0.14" 0.0"
August 90.0° 58.7° 74.3° 0.18" 0.0"
September 80.6° 49.7° 65.2° 0.25" 0.0"
October 65.8° 40.3° 53.1° 0.74" 0.1"
November 51.0° 33.2° 42.1° 0.98" 0.0"
December 41.6° 29.1° 35.4° 1.38" 0.8"
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
Boardman city City 6.9 mi —
Irrigon city City 8.4 mi —
Umatilla city City 15.6 mi —
Hermiston city City 19.1 mi —
Prosser city City 19.8 mi —
Stanfield city City 23.6 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 99345. • 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.