County outline
Where Haakon County is located
Area breakdown
Land accounts for 99.1% of Haakon County’s measured area and water for 0.9%. Its combined area converts to 4,731.7 square kilometers or approximately 1,169,236 acres.
Green: land · blue: water
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 1,810.541 | 4,689.28 | 1,158,746.2 |
| Water | 16.391 | 42.452 | 10,490.2 |
| Total | 1,826.932 | 4,731.732 | 1,169,236.5 |
How Haakon County compares
By original Census land area, Haakon County ranks #11 of 66 in South Dakota and #325 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.
Its land area is 1.991 times the South Dakota county-equivalent median of 909.3 square miles. It accounts for 2.4% of the combined county land area in the state.
See the complete South Dakota ranking · What counts as a county equivalent?
Population and density of Haakon County
The Census Bureau estimates that 1,802 people lived in Haakon County on July 1, 2025. That ranks #3,135 of 3,222 county equivalents nationally and #60 of 66 in South Dakota. Since the April 1, 2020 estimates base of 1,875, the population has declined by 73 (−3.9%), compared with +5.5% for South Dakota as a whole.
With 1,810.5 square miles of land, that is 1 people per square mile (0.38 per km²), placing Haakon County #3,151 nationally for density and #63 in South Dakota. The median county equivalent has 47 people per square mile; the South Dakota median is 5.7. Put another way, there are about 643 acres of land per resident.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 1,869 | 1,838 | 1,829 | 1,856 | 1,824 | 1,802 |
| Change | — | −31 | −9 | +27 | −32 | −22 |
U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.
Cities and towns in Haakon County
2 incorporated places lie at least partly in Haakon County. Together they are home to 845 people (46.9%); the other 957 (53.1%) live outside any incorporated place, in unincorporated communities and rural areas.
The largest is Philip city, with 740 residents in the county.
| Incorporated place | Population 2025 | Since 2020 | Land mi² |
|---|---|---|---|
| Philip cityCounty seat | 740 | −3.1% | 0.622 |
| Midland town | 105 | −4.5% | 0.344 |
Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Haakon County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.
Metropolitan area
Haakon County is not part of any metropolitan or micropolitan statistical area in the Office of Management and Budget’s July 2023 delineation; 1,306 other county equivalents are also outside one. These areas are built around an urban core of at least 10,000 people plus the counties tied to it by commuting, so counties outside them are generally rural.
ZIP codes
5 ZIP Code Tabulation Areas have land in Haakon County; 3 of them have most of their land inside the county, and the others mainly cover neighboring areas.
5753757552575535756757775
ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Lighter codes have less than half of their land in this county. Post-office-box and single-address ZIP Codes have no tabulation area.
Counties bordering Haakon County
Haakon County shares a land border with 5 county equivalents. It has more land than 2 of them. The largest neighbor is Pennington County (2,776.8 mi²) and the smallest is Jones County (969.7 mi²). Together with its neighbors, Haakon County forms a block of 10,826.5 mi² of land, of which it holds 16.7%.
| Bordering county equivalent | Land mi² | Size vs. Haakon | Compare |
|---|---|---|---|
| Pennington County | 2,776.8 | 1.5× larger | Compare |
| Ziebach County | 1,961.2 | 1.1× larger | Compare |
| Jackson County | 1,863.9 | about the same | Compare |
| Stanley County | 1,444.4 | 1.3× smaller | Compare |
| Jones County | 969.7 | 1.9× smaller | Compare |
How big is Haakon County compared with U.S. states?
Haakon County has more land than 1 of the 50 states. It is about 1.8 times the land area of Rhode Island (1,033.9 mi²), while Delaware, the next larger state, has 1.1 times as much land (1,948.6 mi²). South Dakota’s county land could hold about 42 areas the size of Haakon County.
Another way to picture it: the same land area would fill a square about 42.6 miles (68.5 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.
State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.
What stands out about Haakon County?
Haakon County has more land than 2,897 of the other 3,221 county equivalents in the dataset.
A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.
Does including water change its rank?
Using land plus water places Haakon County at #363 nationally by total area, 38 places farther from the top than its land rank. Other county equivalents gain more area when their water measurements are included.
Its water share is 0.9%, compared with a national county-equivalent median of 1.2% — 0.3 percentage points lower. This describes the statistical geography’s land/water mix, not flood exposure or developable land.
Closest positions in the national land ranking
These entries sit immediately beside Haakon County in the national ranking. They can be in different states and are not necessarily geographic neighbors.
| Land rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #324 | Beaver County, Oklahoma | 1,814.8 | Compare |
| #325 | Haakon County, South Dakota | 1,810.5 | This county |
| #326 | Marquette County, Michigan | 1,809.1 | Compare |
Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.
Representative coordinates
The Census internal point is 44.288097, -101.540856. It represents a location inside the geography; it is not necessarily the centroid or the address of a courthouse.
Source and precision
U.S. Census Bureau, 2026 Gazetteer Files, Counties. Original ALAND: 4,689,279,964 m²; AWATER: 42,452,620 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.
Common questions
How big is Haakon County?
Haakon County, South Dakota has 1,810.5 square miles (4,689.3 km²) of land and 16.4 square miles of water, for a total area of 1,826.9 square miles. It ranks #325 of 3,222 U.S. county equivalents by land area.
Is Haakon County the largest county in South Dakota?
No. Haakon County ranks #11 of 66 in South Dakota by land area. The largest is Meade County, with 3,470.9 square miles of land.
What counties border Haakon County?
Haakon County shares a land border with Ziebach County, Jackson County, Stanley County, Pennington County, and Jones County.
What is the population of Haakon County?
The Census Bureau estimates Haakon County had 1,802 residents on July 1, 2025, ranking #3,135 of 3,222 county equivalents. That is 1 people per square mile of land.
What is the county seat of Haakon County?
The county seat of Haakon County is Philip.
What cities and towns are in Haakon County?
Haakon County has 2 incorporated places. The most populous are Philip city and Midland town; 957 residents live outside any incorporated place.
Is Haakon County part of a metropolitan area?
No. Haakon County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.
How many ZIP codes are in Haakon County?
5 ZIP Code Tabulation Areas have land in Haakon County, and 3 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.
How does Haakon County compare with U.S. states?
It has more land than 1 of the 50 states, including Rhode Island (1,033.9 square miles of land).
How many acres of land are in Haakon County?
The land measurement converts to approximately 1,158,746 acres. Including water, total area is approximately 1,169,236 acres. One square mile equals 640 acres.
Why might another source show a different area?
Check whether it reports land or total area, its Census vintage, and its rounding. Our guide explains how to reconcile county area figures.
Can this establish a property boundary?
No. Statistical measurements and generalized maps do not establish property lines. Consult the relevant local surveying or land-records authority.