| Official Name: | Petersburg, Pennsylvania |
| Settlement Type: | Borough |
| Pushpin Map: | Pennsylvania#USA |
| Pushpin Label: | Petersburg |
| Pushpin Label Position: | left |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Pennsylvania |
| Subdivision Type2: | County |
| Subdivision Name2: | Huntingdon |
| Government Type: | Borough Council |
| Leader Title: | Mayor |
| Established Title: | Settled |
| Established Title1: | Incorporated |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 0.86 |
| Area Land Km2: | 0.86 |
| Area Water Km2: | 0.00 |
| Area Total Sq Mi: | 0.33 |
| Area Land Sq Mi: | 0.33 |
| Area Water Sq Mi: | 0.00 |
| Population As Of: | 2020 |
| Population Footnotes: | [2] |
| Population Total: | 419 |
| Population Density Km2: | 486.30 |
| Population Density Sq Mi: | 1258.26 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Coordinates: | 40.5725°N -78.0506°W |
| Elevation Ft: | 663 |
| Postal Code Type: | ZIP code |
| Postal Code: | 16669 |
| Area Code: | 814 |
| Blank Name: | FIPS code |
| Blank Info: | 42-59616 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1215276 |
| Footnotes: | Local phone exchanges: 669 |
Petersburg is a borough in Huntingdon County, Pennsylvania, United States. It was a stop on the former Pennsylvania Railroad Main Line between Tyrone and Huntingdon and the junction point for the Petersburg Branch. The population was 480 at the 2010 census.[3]
Petersburg is located in northern Huntingdon County on the east side of Shaver Creek where it joins the Juniata River, just east of that river's source at the confluence of the Little Juniata River and the Frankstown Branch.
Pennsylvania Route 305 passes through Petersburg, leading northeast to Greenwood Furnace State Park and west 3miles to Alexandria. Huntingdon, the county seat, is 9miles to the south via local roads.
According to the United States Census Bureau, the borough has a total area of 0.86km2, all land.[3]
As of the census of 2000, there were 455 people, 177 households, and 132 families residing in the borough. The population density was 1182.1sp=usNaNsp=us. There were 193 housing units at an average density of 501.4sp=usNaNsp=us. The racial makeup of the borough was 99.56% White, 0.22% Native American, and 0.22% from two or more races.
There were 177 households, out of which 31.6% had children under the age of 18 living with them, 57.6% were married couples living together, 11.9% had a female householder with no husband present, and 25.4% were non-families. 18.6% of all households were made up of individuals, and 7.9% had someone living alone who was 65 years of age or older. The average household size was 2.57 and the average family size was 2.91.
In the borough the population was spread out, with 24.2% under the age of 18, 9.2% from 18 to 24, 32.3% from 25 to 44, 21.1% from 45 to 64, and 13.2% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 92.0 males. For every 100 females age 18 and over, there were 89.6 males.
The median income for a household in the borough was $34,013, and the median income for a family was $35,417. Males had a median income of $29,375 versus $17,292 for females. The per capita income for the borough was $16,141. About 3.7% of families and 6.3% of the population were below the poverty line, including 6.0% of those under age 18 and 11.8% of those age 65 or over.