County outline
Where Emmet County is located
Area breakdown
Land accounts for 98.4% of Emmet County’s measured area and water for 1.6%. Its combined area converts to 1,042.5 square kilometers or approximately 257,614 acres.
Green: land · blue: water
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 395.89 | 1,025.35 | 253,369.6 |
| Water | 6.632 | 17.177 | 4,244.5 |
| Total | 402.522 | 1,042.527 | 257,614.1 |
How Emmet County compares
By original Census land area, Emmet County ranks #98 of 99 in Iowa and #2545 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.
Its land area is 0.695 times the Iowa county-equivalent median of 569.6 square miles. It accounts for 0.7% of the combined county land area in the state.
See the complete Iowa ranking · What counts as a county equivalent?
Population and density of Emmet County
The Census Bureau estimates that 9,107 people lived in Emmet County on July 1, 2025. That ranks #2,556 of 3,222 county equivalents nationally and #81 of 99 in Iowa. Since the April 1, 2020 estimates base of 9,387, the population has declined by 280 (−3%), compared with +1.5% for Iowa as a whole.
With 395.9 square miles of land, that is 23 people per square mile (8.9 per km²), placing Emmet County #2,208 nationally for density and #60 in Iowa. The median county equivalent has 47 people per square mile; the Iowa median is 26. Put another way, there are about 28 acres of land per resident.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 9,341 | 9,331 | 9,206 | 9,294 | 9,131 | 9,107 |
| Change | — | −10 | −125 | +88 | −163 | −24 |
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 Emmet County
6 incorporated places lie at least partly in Emmet County. Together they are home to 7,243 people (79.5%); the other 1,864 (20.5%) live outside any incorporated place, in unincorporated communities and rural areas.
The largest is Estherville city, with 5,807 residents in the county.
| Incorporated place | Population 2025 | Since 2020 | Land mi² |
|---|---|---|---|
| Estherville cityCounty seat | 5,807 | −1.7% | 5.387 |
| Armstrong city | 828 | −4.9% | 0.884 |
| Ringsted city | 341 | −6.6% | 0.996 |
| Wallingford city | 152 | −7.3% | 0.988 |
| Dolliver city | 60 | −9.1% | 0.341 |
| Gruver city | 55 | −6.8% | 0.127 |
Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Emmet County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.
Metropolitan area
Emmet 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
7 ZIP Code Tabulation Areas have land in Emmet County; 5 of them have most of their land inside the county, and the others mainly cover neighboring areas.
50514505315057851334513425136451365
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 Emmet County
Emmet County shares a land border with 5 county equivalents, including 2 in Minnesota. It has more land than 1 of them. The largest neighbor is Kossuth County (972.7 mi²) and the smallest is Dickinson County (380.5 mi²). Together with its neighbors, Emmet County forms a block of 3,728.3 mi² of land, of which it holds 10.6%.
| Bordering county equivalent | Land mi² | Size vs. Emmet | Compare |
|---|---|---|---|
| Kossuth County | 972.7 | 2.5× larger | Compare |
| Martin CountyMinnesota | 712.3 | 1.8× larger | Compare |
| Jackson CountyMinnesota | 703 | 1.8× larger | Compare |
| Palo Alto County | 563.9 | 1.4× larger | Compare |
| Dickinson County | 380.5 | about the same | Compare |
How big is Emmet County compared with U.S. states?
Emmet County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 2.6 times as much. Iowa’s county land could hold about 141 areas the size of Emmet County.
Another way to picture it: the same land area would fill a square about 19.9 miles (32 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 Emmet County?
Emmet County has more land than 677 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 Emmet County at #2,591 nationally by total area, 46 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 1.6%, compared with a national county-equivalent median of 1.2% — 0.5 percentage points higher. 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 Emmet County in the national ranking. They can be in different states and are not necessarily geographic neighbors.
| Land rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #2544 | Marion County, Indiana | 396 | Compare |
| #2545 | Emmet County, Iowa | 395.9 | This county |
| #2546 | Clark County, Ohio | 395.9 | 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 43.377984, -94.669370. 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: 1,025,349,318 m²; AWATER: 17,175,565 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 Emmet County?
Emmet County, Iowa has 395.9 square miles (1,025.4 km²) of land and 6.632 square miles of water, for a total area of 402.5 square miles. It ranks #2545 of 3,222 U.S. county equivalents by land area.
Is Emmet County the largest county in Iowa?
No. Emmet County ranks #98 of 99 in Iowa by land area. The largest is Kossuth County, with 972.7 square miles of land.
What counties border Emmet County?
Emmet County shares a land border with Palo Alto County, Martin County, Minnesota, Dickinson County, Kossuth County, and Jackson County, Minnesota.
What is the population of Emmet County?
The Census Bureau estimates Emmet County had 9,107 residents on July 1, 2025, ranking #2,556 of 3,222 county equivalents. That is 23 people per square mile of land.
What is the county seat of Emmet County?
The county seat of Emmet County is Estherville.
What cities and towns are in Emmet County?
Emmet County has 6 incorporated places. The most populous five are Estherville city, Armstrong city, Ringsted city, Wallingford city, and Dolliver city; 1,864 residents live outside any incorporated place.
Is Emmet County part of a metropolitan area?
No. Emmet County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.
How many ZIP codes are in Emmet County?
7 ZIP Code Tabulation Areas have land in Emmet County, and 5 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.
How does Emmet County compare with U.S. states?
It has less land than every state. Rhode Island, the smallest, has 2.6 times as much land.
How many acres of land are in Emmet County?
The land measurement converts to approximately 253,370 acres. Including water, total area is approximately 257,614 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.