According to the United States Census Bureau, the city has a total area of 1.62 square miles (4.20 km2), all of it land.[10]
Climate
The climate in this area has mild differences between highs and lows, and there is adequate rainfall year-round. According to the Köppen Climate Classification system, Petersburg has a humid subtropical climate, abbreviated "Cfa" on climate maps.
Climate data for Petersburg, West Virginia (1991–2020 normals, extremes 1994–present)
US 220, WV 28 and WV 55 heading northeast towards Moorefield from the center of Petersburg
Petersburg is served by several surface highways. The most prominent of these is U.S. Route 220, which enters Petersburg from the direction of Franklin and exits eastward towards Moorefield. West Virginia Route 28 and West Virginia Route 55 run concurrently through Petersburg, entering from the direction of Seneca Rocks and joining U.S. Route 220 on its journey towards Moorefield. Finally, West Virginia Route 42 begins at Route 28 and Route 55 in Moorefield, heading northward towards Elk Garden.
As of the census[14] of 2010, there were 2,467 people, 1,113 households, and 614 families living in the city. The population density was 1,522.8 inhabitants per square mile (588.0/km2). There were 1,310 housing units at an average density of 808.6 per square mile (312.2/km2). The racial makeup of the city was 94.3% White, 2.0% African American, 0.2% Native American, 0.2% Asian, 2.0% from other races, and 1.3% from two or more races. Hispanic or Latino of any race were 3.4% of the population.
There were 1,113 households, of which 24.7% had children under the age of 18 living with them, 38.6% were married couples living together, 12.1% had a female householder with no husband present, 4.4% had a male householder with no wife present, and 44.8% were non-families. 38.5% of all households were made up of individuals, and 19.7% had someone living alone who was 65 years of age or older. The average household size was 2.11 and the average family size was 2.77.
The median age in the city was 47.1 years. 19.3% of residents were under the age of 18; 8% were between the ages of 18 and 24; 20.5% were from 25 to 44; 27% were from 45 to 64; and 25.4% were 65 years of age or older. The gender makeup of the city was 46.2% male and 53.8% female.
2000 census
As of the census[3] of 2000, there were 2,423 people, 1,086 households, and 620 families living in the city. The population density was 1,482.6 people per square mile (573.9/km2). There were 1,222 housing units at an average density of 747.7 per square mile (289.5/km2). The racial makeup of the city was 97.44% White, 1.57% African American, 0.12% Native American, 0.17% Asian, 0.29% from other races, and 0.41% from two or more races. Hispanic or Latino of any race were 0.78% of the population.
There were 1,086 households, out of which 23.4% had children under the age of 18 living with them, 44.3% were married couples living together, 10.4% had a female householder with no husband present, and 42.9% were non-families. 38.0% of all households were made up of individuals, and 19.0% had someone living alone who was 65 years of age or older. The average household size was 2.10 and the average family size was 2.75.
In the city, the population was spread out, with 19.0% under the age of 18, 8.8% from 18 to 24, 23.8% from 25 to 44, 24.1% from 45 to 64, and 24.3% who were 65 years of age or older. The median age was 44 years. For every 100 females, there were 83.6 males. For every 100 females age 18 and over, there were 78.5 males.
The median income for a household in the city was $24,867, and the median income for a family was $32,941. Males had a median income of $23,654 versus $20,250 for females. The per capita income for the city was $19,642. About 11.9% of families and 17.5% of the population were below the poverty line, including 25.3% of those under age 18 and 11.2% of those age 65 or over.
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