Sully County, SD Population Statistics: Density Map Data
Analyze local population trends, population density map, housing costs, and the local economy.
Area Snapshot Statistics
Key statistics on population, economy, housing, and commuting compared to state and national averages. Explore interactive maps for deeper analysis.
Population: density and quick facts
| Metric | Sully County | South Dakota Avg | U.S. Average |
|---|---|---|---|
| Population | 1,473 | 912,694 | 334,821,731 |
| Population density (per sq mi) | 1.4 | 11.8 | 85.8 |
| Population growth (%/yr) | 0.38% | 0.79% | 0.57% |
| Median age | 50.4 | 35.5 | 37.1 |
| Households | 624 | 358,551 | 128,459,983 |
Population in Sully County grew by 8.7% from 2009 to 2023, reaching 1,481 in 2023.
Population Growth 2009–2023
Race & Ethnicity
Economy
Sully County has a the economy index of B, which means it is quite prosperous.
| Metric | Sully County | South Dakota Avg | U.S. Average |
|---|---|---|---|
| Median household income | $69,896 | $72,558 | $78,145 |
| Income growth (%/yr) | 2.39% | 4.77% | 5.07% |
| Unemployment rate | 1.0% | 3.0% | 5.2% |
The median household income in Sully County is about 4% lower than in South Dakota.
Housing
| Metric | Sully County | South Dakota Avg | U.S. Average |
|---|---|---|---|
| Median home price | — | $98,153 | $242,182 |
| Median rent | $913 | $912 | $1,342 |
| Homeownership rate | 76.1% | 68.6% | 65.1% |
Commute Time & Mobility
Commuters in Sully County spend about 22 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 91 hours, about 3.8 full days, spent commuting.
| Metric | Sully County | South Dakota Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 10.9 | 15.3 | 22.5 |
| Round-trip commute (min) | 21.8 | 30.7 | 44.9 |
| Yearly time spent (hours) | 91 | 128 | 187 |
| Estimated yearly cost | $2,813 | $3,961 | $5,803 |
| Work from home | 15.4% | 9.3% | 13.4% |
| Highway traffic (vehicles/day) | 864 | 2,777 | 8,813 |
| Local road traffic (vehicles/day) | 132 | 353 | 1,355 |
Fastest commutes among counties in
South Dakota:
Jones County (6.4 min), Jackson County (7.5 min), Bennett County (7.7 min).
Slowest:
McCook County (26.4 min), Ziebach County (25.1 min), Turner County (25.1 min).
The average commute time in Sully County is 11 minutes, shorter than the 15 minutes in South Dakota.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Sully County has a education index of D, which means it is barely educated.
| Metric | Sully County | South Dakota Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 23.6% | 28.0% | 31.6% |
| Average household size | 2.37 | 2.42 | 2.54 |
Highest education index among counties in
South Dakota:
Clay County (0.4), Lincoln County (0.3), Stanley County (0.3).
Lowest:
Buffalo County (0.1), Mellette County (0.2), Oglala Lakota County (0.2).
Health
Sully County has a health index of B, which means it is quite healthy.
| Metric | Sully County | South Dakota Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 79.4 | 79.9 | 78.3 |
| Self-rated poor health | 11.3% | 13.8% | 16.3% |
| Smokers | 17.0% | 19.9% | 19.0% |
Highest health index among counties in
South Dakota:
Brookings County (0.8), Lincoln County (0.8), Clay County (0.8).
Lowest:
Todd County (0.7), Buffalo County (0.7), Mellette County (0.7).
Frequently Asked Questions
Common questions about Sully County, South Dakota.
What is the population of Sully County, South Dakota?
The population of Sully County, South Dakota is 1,473, compared to the U.S. total of 334,821,731.
What is the population density of Sully County, South Dakota?
The population density of Sully County, South Dakota is 1.4 people per square mile, compared to the U.S. average of 85.8 people per square mile.
What is the median household income in Sully County, South Dakota?
The median household income in Sully County, South Dakota is $69,896, compared to the U.S. median of $78,145.
What is the unemployment rate in Sully County, South Dakota?
The unemployment rate in Sully County, South Dakota is 1.0%, compared to the U.S. average of 5.2%.