Washington County, Maine

Adjacent counties

• Hancock County – southwest
• Penobscot County – northwest
• Aroostook County – northwest
• York County, New Brunswick, Canada – northeast
• Charlotte County, New Brunswick, Canada – east

National protected areas

• Cross Island National Wildlife Refuge
• Moosehorn National Wildlife Refuge
• Petit Manan National Wildlife Refuge
• Saint Croix Island International Historic Site

Major highways

• US 1
• US 1A
• SR 6
• SR 9
• SR 187
• SR 191
• SR 192
• SR 193

2020 census

As of the 2020 census, the county had a population of 31,095. Of the residents, 18.3% were under the age of 18 and 26.1% were 65 years of age or older; the median age was 49.4 years. For every 100 females there were 97.6 males, and for every 100 females age 18 and over there were 95.4 males. 0.0% of residents lived in urban areas and 100.0% lived in rural areas.^[11][12][13]

The racial makeup of the county was 89.4% White, 0.5% Black or African American, 4.5% American Indian and Alaska Native, 0.4% Asian, 0.0% Native Hawaiian and Pacific Islander, 0.9% from some other race, and 4.2% from two or more races. Hispanic or Latino residents of any race comprised 2.1% of the population.^[13]

There were 13,757 households in the county, of which 23.4% had children under the age of 18 living with them and 26.5% had a female householder with no spouse or partner present. About 32.1% of all households were made up of individuals and 16.7% had someone living alone who was 65 years of age or older.^[12]

There were 21,594 housing units, of which 36.3% were vacant. Among occupied housing units, 76.8% were owner-occupied and 23.2% were renter-occupied. The homeowner vacancy rate was 3.1% and the rental vacancy rate was 9.3%.^[12]

2022 population density

According to U.S. Census Bureau 2022 statistics, Washington County's population density equates to twelve people per square mile.^[17]

2010 census

As of the 2010 United States census, there were 32,856 people, 14,302 households, and 8,847 families living in the county.^[18] The population density was 12.8 inhabitants per square mile (4.9/km²). There were 23,001 housing units at an average density of 9.0 units per square mile (3.5 units/km²).^[19] The racial makeup of the county was 92.1% white, 4.9% American Indian, 0.5% Asian, 0.4% black or African American, 0.4% from other races, and 1.7% from two or more races. Those of Hispanic or Latino origin made up 1.4% of the population.^[18] In terms of ancestry, 30.4% were English, 17.0% were Irish, 7.0% were German, 6.1% were Scottish, and 5.6% were American.^[20]

Of the 14,302 households, 25.9% had children under the age of 18 living with them, 47.1% were married couples living together, 9.6% had a female householder with no husband present, 38.1% were non-families, and 31.6% of all households were made up of individuals. The average household size was 2.24 and the average family size was 2.76. The median age was 46.1 years.^[18]

The median income for a household in the county was $34,859 and the median income for a family was $43,612. Males had a median income of $35,981 versus $27,336 for females. The per capita income for the county was $19,401. About 14.1% of families and 19.8% of the population were below the poverty line, including 29.3% of those under age 18 and 12.4% of those age 65 or over.^[21]

2000 census

As of the census^[22] of 2000, there were 33,941 people, 14,118 households, and 9,303 families living in the county. The population density was 13 people per square mile (5.0 people/km²). There were 21,919 housing units at an average density of 8 per square mile (3.1/km²). The racial makeup of the county was 93.48% White, 0.26% Black or African American, 4.43% Native American, 0.30% Asian, 0.01% Pacific Islander, 0.44% from other races, and 1.07% from two or more races. 0.81% of the population were Hispanic or Latino of any race. 95.0% spoke English, 1.9% Passamaquoddy, 1.0% Spanish and 1.0% French as their first language.

There were 14,118 households, out of which 28.00% had children under the age of 18 living with them, 52.10% were married couples living together, 9.50% had a female householder with no husband present, and 34.10% were non-families. 28.30% of all households were made up of individuals, and 13.10% had someone living alone who was 65 years of age or older. The average household size was 2.34 and the average family size was 2.84.

In the county, the population was spread out, with 22.90% under the age of 18, 8.00% from 18 to 24, 26.30% from 25 to 44, 25.60% from 45 to 64, and 17.30% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 95.50 males. For every 100 females age 18 and over, there were 93.90 males.

The median income for a household in the county was $25,869, and the median income for a family was $31,657. Males had a median income of $28,347 versus $20,074 for females. The per capita income for the county was $14,119. About 14.20% of families and 19.00% of the population were below the poverty line, including 22.40% of those under age 18 and 19.20% of those age 65 or over.

Voter registration

Cities

• Calais
• Eastport

Towns

Plantations

• Baring Plantation
• Grand Lake Stream Plantation

Unorganized territories

• East Central Washington
• North Washington

Indian reservations

• Passamaquoddy Pleasant Point Reservation
• Passamaquoddy Indian Township Reservation

Census-designated places

• Danforth
• Jonesport
• Lubec
• Machias
• Milbridge
• Vanceboro
• Woodland