WASHINGTON (DC News Now) -- October is National Adopt a Dog Month, and according to the American Humane, it is an effort to shine a light on the three to four million animals that go into the shelter, hoping for a new home. To help potential adopters find animal shelters near and far, DC News Now put together a list of shelters around D.C., Maryland and Virginia. Veterans, military families can adopt pets for free at Homeward Trails in October Washington, D.C.: Humane Rescue Alliance City Dogs & City Kitties Rescue Rural Dog Rescue Maryland: Montgomery County: Montgomery County Animal Services & Adoption Center Montgomery County Humane Society Animal Welfare League of Montgomery County Key to Lion's Heart Rescue (foster-based nonprofit in Montgomery County) Leashes End Prince George's County: Prince George's County Animal Services Facility & Adoption Center SPCA of Prince George's County City of Greenbelt Animal Shelter City of College Park Animal Shelter Frederick County: Frederick County Animal Control & Pet Adoption Center Frederick Friends of Our County Animal Shelter Animal Welfare League of Frederick County House of Puddles Washington County: Humane Society of Washington County Howard County: Howard County Animal Control and Adoption Center Animal Welfare Society of Howard County Anne Arundel County: Anne Arundel County Animal Care & Control SPCA of Anne Arundel County Carroll County: Humane Society of Carroll County Charles County: Charles County Animal Care Center Humane Society of Charles County Furever Safe Rescue St. Mary's County: St. Mary's Animal Adoption & Resources Center Calvert County: Mabel's Orphaned Angels Rescue (foster-based nonprofit in Chesapeake Beach) Calvert County Animal Shelter Calvert Animal Welfare League Allegany County: Allegany County Animal Shelter Ark of Hope Rescue Injured Canadian Goose in Stafford County sent to rehabilitation center for recovery Virginia: Arlington: Animal Welfare League of Arlington Alexandria: Animal Welfare League of Alexandria Mount Vernon Animal Rescue (foster-based nonprofit in Alexandria) Falls Church: The Lost Dog & Cat Rescue Foundation (foster-based organization in Falls Church) Fairfax County: Homeward Trails Animal Rescue Wolf Trap Animal Rescue Fairfax County Animal Shelter Humane Society of Fairfax County Prince William County: Prince William County Animal Services Center Humane Society of Northern Virginia Manassas: City of Manassas Animal Adoption Center Loudoun County: Loudoun County Animal Shelter Friends of Homeless Animals Stafford County: Stafford County Animal Shelter Stafford County SPCA Fauquier County: Fauquier SPCA Middleburg Humane Foundation Spotsylvania County: Spotsylvania County Animal Shelter Fredericksburg: Fredericksburg SPCA Old Dominion Humane Society Compassion Animal Rescue SFC Virginia (foster-based rescue in Fredericksburg) Rappahannock County: Rappahannock Animal Welfare League Warren County: Humane Society of Warren County Frederick County: Esther Boyd Animal Shelter Winchester Area SPCA PHOTOS: Spotsylvania County Sheriff’s Office celebrates K-9 Enzo’s 6th birthday These foster-based rescue organizations serve the entire DMV: Operation Paws for Homes Lucky Dog Animal Rescue Last Chance Animal Rescue Laila's Legacy Animal Rescue K-9 Lifesavers