BirdAnalyst
Species · Indiana · BBS 2026 Release · 1966–2025

Bald Eagle Population Trend in Indiana

All statesBirds of prey

Bald Eagle in Indiana has surged: up 229% on the route-weighted index since 2013.

+229%Since 2013TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
32Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
14YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Bald Eagle Trends in IndianaNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Bald Eagle has surged in Indiana: up 229% on the route-weighted index since 2013.

Bald Eagle Survey Routes in Indiana

Routes recording Bald Eagle in Indiana.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
Jamestown320252022
Montpelier320192019
Kankakee Sands220252023
Fowler220222022
Wabash220252013
Cuba220242024
Kewanna120222022
Galveston120252025
Thorntown120222018
Middletown120242024
Berne120242024
Pimento120222021
Brazil120252025
Friendswood120242024
Spencer120242024
Shelbyville120242024
Millersburg120192019
Indian Spgs120212021
Celestine120242022
Clear Spring120251994
Corydon120212021
Scottsburg120152015
Crown Point120152015
Lagrange120252025
Rensselaer120192019

Bald Eagle Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniasouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.