|Cheshire County, New Hampshire|
Cheshire County Courthouse in Keene
Location in the U.S. state of New Hampshire
New Hampshire's location in the U.S.
|• Total||729 sq mi (1,888 km2)|
|• Land||707 sq mi (1,831 km2)|
|• Water||22 sq mi (57 km2), 3.1%|
|• ( 2016)||75,774|
|• Density||109/sq mi (42/km2)|
|Time zone||Eastern: UTC−5/ −4|
Cheshire County is a county located in the southwestern portion of the U.S. state of New Hampshire. As of the 2010 census, the population was 77,117.  Its county seat is the city of Keene.  Cheshire was one of the five original counties of New Hampshire, and is named for the county of Cheshire in England. It was organized in 1771 at Keene.
Cheshire County comprises the Keene, NH Micropolitan Statistical Area.
According to the U.S. Census Bureau, the county has a total area of 729 square miles (1,890 km2), of which 707 square miles (1,830 km2) is land and 22 square miles (57 km2) (3.1%) is water.  The highest point in Cheshire county is Mount Monadnock, in the northwestern part of Jaffrey, at 3,165 feet (965 m).
- Sullivan County (north)
- Hillsborough County (east)
- Worcester County, Massachusetts (southeast)
- Franklin County, Massachusetts (southwest)
- Windham County, Vermont (west)
|U.S. Decennial Census
1790-1960  1900-1990 
1990-2000  2010-2016 
As of the census  of 2000, there were 73,825 people, 28,299 households, and 18,790 families residing in the county. The population density was 104 people per square mile (40/km²). There were 31,876 housing units at an average density of 45 per square mile (17/km²). The racial makeup of the county was 97.75% White, 0.37% Black or African American, 0.31% Native American, 0.47% Asian, 0.04% Pacific Islander, 0.18% from other races, and 0.89% from two or more races. 0.72% of the population were Hispanic or Latino of any race. 16.2% were of English, 13.1% French, 12.7% Irish, 9.3% American, 8.7% French Canadian, 6.7% Italian and 6.5% German ancestry. 95.5% spoke English, 1.4% French and 1.2% Spanish as their first language.
There were 28,299 households out of which 30.60% had children under the age of 18 living with them, 53.50% were married couples living together, 9.00% had a female householder with no husband present, and 33.60% were non-families. 25.50% of all households were made up of individuals and 9.60% had someone living alone who was 65 years of age or older. The average household size was 2.47 and the average family size was 2.96.
In the county, the population was spread out with 23.30% under the age of 18, 11.70% from 18 to 24, 27.00% from 25 to 44, 24.30% from 45 to 64, and 13.70% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 94.90 males. For every 100 females age 18 and over, there were 91.70 males.
The median income for a household in the county was $42,382, and the median income for a family was $51,043. Males had a median income of $33,821 versus $25,328 for females. The per capita income for the county was $20,685. About 4.40% of families and 8.00% of the population were below the poverty line, including 8.50% of those under age 18 and 6.30% of those age 65 or over.
As of the 2010 United States Census, there were 77,117 people, 30,204 households, and 19,284 families residing in the county.  The population density was 109.1 inhabitants per square mile (42.1/km2). There were 34,773 housing units at an average density of 49.2 per square mile (19.0/km2).  The racial makeup of the county was 96.3% white, 1.2% Asian, 0.5% black or African American, 0.3% American Indian, 0.4% from other races, and 1.4% from two or more races. Those of Hispanic or Latino origin made up 1.4% of the population.  In terms of ancestry, 20.7% were English, 19.1% were Irish, 12.0% were German, 8.8% were French Canadian, 8.7% were Italian, 5.0% were Scottish, and 4.7% were American. 
Of the 30,204 households, 27.8% had children under the age of 18 living with them, 49.9% were married couples living together, 9.4% had a female householder with no husband present, 36.2% were non-families, and 26.2% of all households were made up of individuals. The average household size was 2.40 and the average family size was 2.88. The median age was 40.7 years. 
The median income for a household in the county was $53,828 and the median income for a family was $65,936. Males had a median income of $46,014 versus $35,864 for females. The per capita income for the county was $27,045. About 6.0% of families and 10.0% of the population were below the poverty line, including 10.5% of those under age 18 and 6.8% of those age 65 or over. 
The executive power of Cheshire County's government is held by three county commissioners, each representing one of the three commissioner districts within the county. 
|District 1||Peter Graves (Chairman)||Walpole, NH||Republican|
|District 2||Charles "Chuck" Weed (Clerk)||Keene, NH||Democratic|
|District 3||Joseph Cartwright (Vice Chairman)||Alstead, NH||Republican|
In addition to the County Commission, there are five directly-elected officials: they include County Attorney, Register of Deeds, County Sheriff, Register of Probate, and County Treasurer. 
|County Attorney||Chris McLaughlin (D)|
|Register of Deeds||Anna Tilton (D)|
|County Sheriff||Eli Rivera (D)|
|Register of Probate||Jeremy LaPlante (D)|
|County Treasurer||Jack Wozmak (D)|
The legislative branch of Cheshire County is made up of all of the members of the New Hampshire House of Representatives from the county. In total, as of August 2018 there are 23 members from 16 different districts.
- Keene (county seat)
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- "Population, Housing Units, Area, and Density: 2010 - County". United States Census Bureau. Retrieved 2016-01-12.
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- Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved 11 April 2018.
- Official Cheshire County web site
- Cheshire information pages at the University of New Hampshire
- National Register of Historic Places listing for Cheshire County
- Keene Pumpkin Festival
- Map of fire stations in Cheshire County