According to theU.S. Census Bureau, the county has a total area of 2,292 square miles (5,940 km2), of which 1,045 square miles (2,710 km2) is land and 1,247 square miles (3,230 km2) (54%) is water.[6] It is the second-largest county in Wisconsin by total area. TheApostle Islands are a small group of islands inLake Superior, off the Bayfield Peninsula with the majority of the islands located in Ashland County — only Eagle, Sand, York and Raspberry Islands are inBayfield County.
As of the2020 census, the county had a population of 16,027, resulting in a population density of 15.3 per square mile. There were 9,407 housing units at an average density of 9.0 per square mile; 27.7% of those units were vacant and among occupied units 69.0% were owner-occupied while 31.0% were renter-occupied, with homeowner and rental vacancy rates of 2.4% and 8.6%, respectively.[1][13][14]
The median age was 42.6 years, with 21.5% of residents under the age of 18 and 21.3% aged 65 or older. For every 100 females there were 99.5 males, and for every 100 females age 18 and over there were 98.0 males age 18 and over.[14]
There were 6,805 households in the county, of which 24.3% had children under the age of 18 living in them. Of all households, 41.3% were married-couple households, 22.4% were households with a male householder and no spouse or partner present, and 27.2% were households with a female householder and no spouse or partner present. About 34.9% of all households were made up of individuals and 16.0% had someone living alone who was 65 years of age or older.[14]
As of thecensus[17] of 2000, there were 16,866 people, 6,718 households, and 4,279 families living in the county. Thepopulation density was 16 people per square mile (6.2 people/km2). There were 8,883 housing units at an average density of 8 units per square mile (3.1 units/km2). The racial makeup of the county was 87.10%White, 0.21%Black orAfrican American, 10.35%Native American, 0.31%Asian, 0.05%Pacific Islander, 0.29% fromother races, and 1.69% from two or more races. 1.11% of the population wereHispanic orLatino of any race. 27.8% were ofGerman, 8.4%Finnish, 7.4%Polish, 7.4%Norwegian, 7.3%Swedish and 5.4%Irish ancestry. 96.6% spokeEnglish as their first language. The reservation of theBad River Chippewa Band is partially located in the county.
There were 6,718 households, out of which 30.30% had children under the age of 18 living with them, 48.60% weremarried couples living together, 10.90% had a female householder with no husband present, and 36.30% were non-families. 30.80% of all households were made up of individuals, and 14.40% had someone living alone who was 65 years of age or older. The average household size was 2.39 and the average family size was 3.01.
In the county, the population was spread out, with 25.40% under the age of 18, 11.20% from 18 to 24, 25.80% from 25 to 44, 21.70% from 45 to 64, and 15.90% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 97.10 males. For every 100 females age 18 and over, there were 91.10 males.
In 2017, there were 194 births, giving a general fertility rate of 73.1 births per 1000 women aged 15–44, the eleventh highest rate out of all 72 Wisconsin counties.[18] Additionally, there were no reported induced abortions performed on women of Ashland County residence in 2017.[19]
Ashland County is consistently Democratic. It has voted for the Democrat in every presidential election since 1932, with the exceptions of 1952 and 1956 when it backed RepublicanDwight D. Eisenhower's two successful bids for the presidency. The Democratic margin has narrowed in recent elections since theObama era, withDonald Trump's 2024 performance of over 46% being the best by a Republican sinceNixon in 1972. This was also the first time since 1972 that a Democrat carried the county by only a single-digit margin.[21]
^Reported Induced Abortions in Wisconsin, Office of Health Informatics, Division of Public Health, Wisconsin Department of Health Services. Section: Trend Information, 2013-2017, Table 18, pages 17-18