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Rock Lake CCD, Washington

Rock Lake CCD profile, demographic data, and geographic information.

Rock Lake CCD is a geographic entity located in Whitman County, Washington. As of official census estimates, it has a reported population of 1,832. The land area covers 608.89 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population 1,832 ±221 2020-2024 / Census ACS 5-Year 2024
Median Age 46.5 yrs ±4.8 2020-2024 / Census ACS 5-Year 2024
Total Households 792 ±89 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 921 ±98
Occupied Housing Units 792 ±89
Vacant Housing Units 129 ±41
Median Home Value $208,800 ±$25,463
Median Gross Rent $883 ±$180
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $54,352 ±$10,783
Per Capita Income $31,607 ±$3,946
Poverty Rate 14.3% ±4.1%
Population Below Poverty Level 256 ±79
Unemployment Rate 5.3% ±3.3%
Civilian Labor Force, Employed 698 ±92
Broadband Internet Rate 81.7% ±3.6%
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: 48,399 (2024)
ID: 176807
County Official County Government
Contact: CLERK OF THE BOARD
400 N MAIN ST, COLFAX WA 99111-2071

Education

Listing 4 local institutions (NCES 2024-2025) External reference via K12Guides
Institution Type Grades Location
Regular School Nearby PK-08 Endicott, WA
Regular School Nearby 05-08 Lamont, WA
Regular School Nearby PK-05 Saint John, WA
Regular School Nearby 09-12 Saint John, WA
Source: k12guides.com.

Community Facilities & Infrastructure

Displaying 8 civic institutions across 1 datasets queried CMS • IPEDS • IMLS
Facility Name Category Relationship Address / Location Contact
ST. JOHN BRANCH LIBRARY
Library 7.3 mi away 1 EAST FRONT STREET, ST. JOHN, WA, 99171
(509) 648-3319
ENDICOTT BRANCH LIBRARY
Library 8.9 mi away 324 E STREET, ENDICOTT, WA, 99125
(509) 657-3429
MALDEN BRANCH LIBRARY
Library 16.6 mi away 205 SW MORELAND, MALDEN, WA, 99149
(509) 569-3609
LACROSSE BRANCH LIBRARY
Library 18.0 mi away 107 S MAIN, LACROSSE, WA, 99143
(509) 635-1490
SPRAGUE PUBLIC LIBRARY
Library 20.7 mi away 119 WEST SECOND, SPRAGUE, WA, 99032
(509) 257-2662
COLFAX LIBRARY
Library 20.8 mi away 102 S. MAIN, COLFAX, WA, 99111
(509) 397-4366
ROSALIA BRANCH LIBRARY
Library 20.9 mi away 402 S. WHITMAN AVE., ROSALIA, WA, 99170
(509) 523-3109
OAKESDALE BRANCH LIBRARY
Library 23.3 mi away E 102 STEPTOE, OAKESDALE, WA, 99158
(509) 285-4310
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 ST JOHN, WA US, located 7.0 miles from Rock Lake CCD. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 36.6° 28.7° 32.6° 2.05" 8.8"
February 41.3° 30.1° 35.7° 1.52" 2.7"
March 49.4° 34.1° 41.8° 1.90" 1.4"
April 57.2° 38.2° 47.7° 1.54" 0.4"
May 66.4° 44.8° 55.6° 1.56" 0.0"
June 73.1° 49.7° 61.4° 1.12" 0.0"
July 83.6° 54.4° 69.0° 0.43" 0.0"
August 83.5° 53.3° 68.4° 0.34" 0.0"
September 73.9° 46.7° 60.3° 0.56" 0.0"
October 59.0° 38.6° 48.8° 1.50" 0.1"
November 44.0° 33.0° 38.5° 2.15" 2.5"
December 35.1° 27.9° 31.5° 2.38" 10.7"
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
St. John town Town 6.9 mi —
Endicott town Town 8.9 mi —
Lamont town Town 13.2 mi —
Malden town Town 17.0 mi —
Steptoe CDP CDP 18.0 mi —
LaCrosse town Town 20.0 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 5307592832. • 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.