County outline
Where Holmes County is located
Area breakdown
Land accounts for 99.7% of Holmes County’s measured area and water for 0.3%. Its combined area converts to 1,098.3 square kilometers or approximately 271,386 acres.
Green: land · blue: water
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 422.614 | 1,094.565 | 270,473 |
| Water | 1.426 | 3.693 | 912.6 |
| Total | 424.04 | 1,098.259 | 271,385.6 |
How Holmes County compares
By original Census land area, Holmes County ranks #50 of 88 in Ohio and #2398 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.
Its land area is 0.969 times the Ohio county-equivalent median of 436 square miles. It accounts for 1% of the combined county land area in the state.
See the complete Ohio ranking · What counts as a county equivalent?
Population and density of Holmes County
The Census Bureau estimates that 44,970 people lived in Holmes County on July 1, 2025. That ranks #1,114 of 3,222 county equivalents nationally and #54 of 88 in Ohio. Since the April 1, 2020 estimates base of 44,223, the population has grown by 747 (+1.7%), compared with +0.9% for Ohio as a whole.
With 422.6 square miles of land, that is 106 people per square mile (41 per km²), placing Holmes County #943 nationally for density and #50 in Ohio. The median county equivalent has 47 people per square mile; the Ohio median is 120. Put another way, there are about 6 acres of land per resident.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 44,239 | 44,381 | 44,361 | 44,407 | 44,743 | 44,970 |
| Change | — | +142 | −20 | +46 | +336 | +227 |
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 Holmes County
7 incorporated places lie at least partly in Holmes County. Together they are home to 5,143 people (11.4%); the other 39,827 (88.6%) live outside any incorporated place, in unincorporated communities and rural areas.
The largest is Millersburg village, with 3,295 residents in the county. By land, Loudonville village is the largest at 2.722 mi² across all its counties.
| Incorporated place | Population 2025 | Since 2020 | Land mi² |
|---|---|---|---|
| Millersburg villageCounty seat | 3,295 | +4.2% | 2.564 |
| Killbuck village | 816 | +1.1% | 0.361 |
| Holmesville village | 377 | +0.5% | 0.223 |
| Glenmont village | 238 | +1.7% | 0.281 |
| Nashville village | 186 | +2.2% | 0.069 |
| Baltic villageAlso in 2 other counties | 160 | −0.6% | 0.901 |
| Loudonville villageAlso in 1 other county | 71 | +1.4% | 2.722 |
Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Holmes County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.
Metropolitan area
Holmes 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
19 ZIP Code Tabulation Areas have land in Holmes County; 14 of them have most of their land inside the county, and the others mainly cover neighboring areas.
43006438044461044611446244462744628446334463744638446544466044661446764468144687446894469044842
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 Holmes County
Holmes County shares a land border with 6 county equivalents. Each of them has more land than Holmes County. The largest neighbor is Stark County (574.9 mi²) and the smallest is Ashland County (423 mi²). Together with its neighbors, Holmes County forms a block of 3,632.6 mi² of land, of which it holds 11.6%.
| Bordering county equivalent | Land mi² | Size vs. Holmes | Compare |
|---|---|---|---|
| Stark County | 574.9 | 1.4× larger | Compare |
| Tuscarawas County | 567.6 | 1.3× larger | Compare |
| Coshocton County | 563.9 | 1.3× larger | Compare |
| Wayne County | 555 | 1.3× larger | Compare |
| Knox County | 525.5 | 1.2× larger | Compare |
| Ashland County | 423 | about the same | Compare |
How big is Holmes County compared with U.S. states?
Holmes County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 2.4 times as much. Ohio’s county land could hold about 97 areas the size of Holmes County.
Another way to picture it: the same land area would fill a square about 20.6 miles (33.1 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 Holmes County?
Holmes County has more land than 824 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 Holmes County at #2,471 nationally by total area, 73 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 0.3%, compared with a national county-equivalent median of 1.2% — 0.8 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 Holmes County in the national ranking. They can be in different states and are not necessarily geographic neighbors.
| Land rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #2397 | Boone County, Indiana | 422.9 | Compare |
| #2398 | Holmes County, Ohio | 422.6 | This county |
| #2399 | Allegany County, Maryland | 422.2 | 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 40.565618, -81.930019. 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: 1,094,566,302 m²; AWATER: 3,694,364 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 Holmes County?
Holmes County, Ohio has 422.6 square miles (1,094.6 km²) of land and 1.426 square miles of water, for a total area of 424 square miles. It ranks #2398 of 3,222 U.S. county equivalents by land area.
Is Holmes County the largest county in Ohio?
No. Holmes County ranks #50 of 88 in Ohio by land area. The largest is Ashtabula County, with 702.4 square miles of land.
What counties border Holmes County?
Holmes County shares a land border with Wayne County, Coshocton County, Tuscarawas County, Ashland County, Knox County, and Stark County.
What is the population of Holmes County?
The Census Bureau estimates Holmes County had 44,970 residents on July 1, 2025, ranking #1,114 of 3,222 county equivalents. That is 106 people per square mile of land.
What is the county seat of Holmes County?
The county seat of Holmes County is Millersburg.
What cities and towns are in Holmes County?
Holmes County has 7 incorporated places. The most populous five are Millersburg village, Killbuck village, Holmesville village, Glenmont village, and Nashville village; 39,827 residents live outside any incorporated place.
Is Holmes County part of a metropolitan area?
No. Holmes County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.
How many ZIP codes are in Holmes County?
19 ZIP Code Tabulation Areas have land in Holmes County, and 14 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.
How does Holmes County compare with U.S. states?
It has less land than every state. Rhode Island, the smallest, has 2.4 times as much land.
How many acres of land are in Holmes County?
The land measurement converts to approximately 270,473 acres. Including water, total area is approximately 271,386 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.