|Etymology: the surrounding maple forests|
Location of Sugar Grove in Warren County, Pennsylvania.
|o Total||1.12 sq mi (2.90 km2)|
|o Land||1.12 sq mi (2.90 km2)|
|o Water||0.00 sq mi (0.00 km2)|
| o Estimate |
|o Density||526.32/sq mi (203.24/km2)|
|Time zone||UTC-4 (EST)|
|o Summer (DST)||UTC-5 (EDT)|
Sugar Grove is located at (41.982166, -79.341588).
According to the United States Census Bureau, the borough has a total area of 1.1 square miles (2.9 km²), all of it land.
As of the census of 2000, there were 613 people, 232 households, and 180 families residing in the borough. The population density was 550.2 people per square mile (213.2/km²). There were 250 housing units at an average density of 224.4 per square mile (87.0/km²). The racial makeup of the borough was 99.51% White, 0.16% African American, and 0.33% from two or more races. Hispanic or Latino of any race were 0.16% of the population.
There were 232 households out of which 36.6% had children under the age of 18 living with them, 61.6% were married couples living together, 11.2% had a female householder with no husband present, and 22.4% were non-families. 19.8% of all households were made up of individuals and 13.4% had someone living alone who was 65 years of age or older. The average household size was 2.64 and the average family size was 3.00.
In the borough the population was spread out with 27.9% under the age of 18, 7.8% from 18 to 24, 27.2% from 25 to 44, 21.2% from 45 to 64, and 15.8% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 88.0 males. For every 100 females age 18 and over, there were 81.1 males.
The median income for a household in the borough was $36,125, and the median income for a family was $41,964. Males had a median income of $29,519 versus $21,607 for females. The per capita income for the borough was $16,896. About 6.7% of families and 8.2% of the population were below the poverty line, including 11.1% of those under age 18 and 4.0% of those age 65 or over.