BirdAnalyst
Species · Washington · BBS 2025 Release · 1966–2024

House Sparrow Population Trend in Washington

All statesGeneralists

House Sparrow in Washington has edged down: down 12% on the route-weighted index since 1970.

-12%Since 1970
82Routes In State
56Years

Notable House Sparrow Trends in Washington

No notable trend signals for House Sparrow in Washington. See the full index history below.

House Sparrow Population Forecast in Washington

If the recent trend holds, House Sparrow in Washington is projected to fall about 51% by 2029 — from 12 in 2024 to a central estimate of 6.1 (95% range 0.00–24). A 5-year backtest shows a typical error of ±26.9%, with 100% of held-out values landing inside the 95% band.

-51%Change by 2029
6.1Projected 2029 index
0.00–2495% range
±26.9%Backtest error
19682029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
20257.90.0026
20267.50.0025
20277.00.0025
20286.60.0025
20296.10.0024

House Sparrow Survey Routes in Washington

Routes recording House Sparrow in Washington.
Columbia Nwr13020221992
Selah12520232000
Othello12219911981
Scootney Reservoir11320242009
Moses Lake10920221973
Mesa7320081994
Reardan6420241968
Wapato6420221971
Ewan 26320242023
Asotin6120241981
Quincy6120241981
Yakima4320241993
Hartline4120241994
Camas3920181971
Malden3920241998
Pomona3819991998
Odessa3720241993
Snowden3520241971
Hatton2919941992
Walla Walla2919931993
Keystone2620241995
Potholes2220231996
Twisp1920241969
Harwood1919971993
Bay View1820171993

House Sparrow Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawest-virginiawisconsinwyoming

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.