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 and multiracial populations.

Population by Race

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%

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