Petersburg

County:: Nelson County
County Seat:: No
Area (mi²):: 1.028
State:: North Dakota

Petersburg is a city located in Nelson County, North Dakota. Petersburg has a 2025 population of 158. Petersburg is currently declining at a rate of 0% annually and its population has decreased by -1.25% since the most recent census, which recorded a population of 160 in 2020.

The average household income in Petersburg is $86,843 with a poverty rate of 3.1%. The median age in Petersburg is 57.5 years: 64.3 years for males, and 38.5 years for females.

Demographics

The racial composition of Petersburg includes 81.4% White, 6.98% Asian, 3.88% other race, and smaller percentages for Native American, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Asian

Two or more races

Other race

Native American

Black or African American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	105	81.4%
Asian	9	6.98%
Two or more races	7	5.43%
Other race	5	3.88%
Native American	3	2.33%
Black or African American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Petersburg Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Petersburg's average per capita income is $45,625. Household income levels show a median of $64,167. The poverty rate stands at 3.1%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Families	$112,500	$117,318
Married Families	$103,750	-
Households	$64,167	$86,843
Non Families	$33,750	$35,035

$45,625

Average Income

$64,167

Median Household Income

3.1%

Poverty Rate