Gildford is an unincorporated community and census-designated place (CDP) in Hill County, Montana, United States. The population was 179 at the 2010 census.
Gildford is located in west-central Hill County at 48°34′11″N 110°17′50″W / 48.56972°N 110.29722°W / 48.56972; -110.29722 (48.569785, -110.297115). U.S. Route 2 passes along the southern edge of the community, leading east 29 miles (47 km) to Havre, the county seat, and west 74 miles (119 km) to Shelby.
According to the United States Census Bureau, the CDP has a total area of 5.0 square miles (13 km), all of it land. But it has a creek near Highway 2 at the edge of the town.
As of the census of 2000, there were 185 people, 76 households, and 54 families residing in the CDP. The population density was 36.9 people per square mile (14.3/km²). There were 86 housing units at an average density of 17.2 per square mile (6.6/km²). The racial makeup of the CDP was 97.84% White, 1.08% Native American, and 1.08% from two or more races.
There were 76 households out of which 31.6% had children under the age of 18 living with them, 64.5% were married couples living together, 3.9% had a female householder with no husband present, and 28.9% were non-families. 27.6% of all households were made up of individuals and 13.2% had someone living alone who was 65 years of age or older. The average household size was 2.43 and the average family size was 2.98.
In the CDP, the population was spread out with 27.0% under the age of 18, 4.9% from 18 to 24, 25.9% from 25 to 44, 21.1% from 45 to 64, and 21.1% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 92.7 males. For every 100 females age 18 and over, there were 84.9 males.
The median income for a household in the CDP was $33,125, and the median income for a family was $43,750. Males had a median income of $23,125 versus $28,438 for females. The per capita income for the CDP was $17,648. About 4.4% of families and 4.9% of the population were below the poverty line, including none of those under the age of eighteen and 6.1% of those sixty five or over.