Northville, South Dakota Demographics & Population 2026

A note before these figures: with a population of 153, Northville's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

Northville is a small community located in South Dakota, within Spink County. The total population is 153. It ranks as the 260th most populous out of 439 Census-designated places in South Dakota.

Age Demographics

The median age in Northville is 43.3 years. This is 14% higher than the state median of 38.0 years. With 36.6% of the population under 18, Northville has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Northville is $105,000. This is 40% higher than the state median of $75,081. It is also 30% higher than the national median of $80,734. The poverty rate stands at 3.9%. This is 67% lower than the state poverty rate of 11.9%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The survey records no unemployed residents in Northville, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $150,000. Housing costs are 42% lower than the state median of $257,400. With a home-value-to-income ratio of just 1.4x, Northville is one of the most affordable housing markets in the area. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 46% higher than the state average of 68.6%.

Race & Ethnicity

Every resident counted in Northville was recorded as White (non-Hispanic). A figure of exactly 100.0% reflects a survey sample too small to capture the community's full composition rather than a precise measurement.

Education

58.5% of residents aged 25 and older hold a bachelor's degree or higher. This places Northville in the top 10% of all cities in the state for educational attainment. This is 83% higher than the state rate of 31.9%. Nationally, 35.7% of adults hold at least a bachelor's degree. No surveyed resident aged 25 or older reported leaving school before earning a high school diploma, though a rate of exactly 100% reflects the limits of a small sample.

Data Sources & Methodology

All demographic data for Northville, South Dakota is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against South Dakota state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 439 Census-designated places in South Dakota. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.