County outline
Where Lamoille County is located
Area breakdown
Land accounts for 98.9% of Lamoille County’s measured area and water for 1.1%. Its combined area converts to 1,207.4 square kilometers or approximately 298,353 acres.
Green: land · blue: water
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 461.252 | 1,194.637 | 295,201.3 |
| Water | 4.924 | 12.753 | 3,151.4 |
| Total | 466.176 | 1,207.39 | 298,352.6 |
How Lamoille County compares
By original Census land area, Lamoille County ranks #13 of 14 in Vermont and #2226 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.
Its land area is 0.678 times the Vermont county-equivalent median of 680.6 square miles. It accounts for 5% of the combined county land area in the state.
See the complete Vermont ranking · What counts as a county equivalent?
Population and density of Lamoille County
The Census Bureau estimates that 26,294 people lived in Lamoille County on July 1, 2025. That ranks #1,614 of 3,222 county equivalents nationally and #12 of 14 in Vermont. Since the April 1, 2020 estimates base of 25,948, the population has grown by 346 (+1.3%), compared with +0.2% for Vermont as a whole.
With 461.3 square miles of land, that is 57 people per square mile (22 per km²), placing Lamoille County #1,434 nationally for density and #8 in Vermont. The median county equivalent has 47 people per square mile; the Vermont median is 57. Put another way, there are about 11 acres of land per resident.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 25,927 | 26,155 | 26,141 | 26,152 | 26,149 | 26,294 |
| Change | — | +228 | −14 | +11 | −3 | +145 |
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 Lamoille County
Lamoille County is divided into 10 cities and towns. In Vermont, county subdivisions are local governments, and together they cover all of the county’s land and residents.
The most populous is Morristown town, with 6,129 residents (23.3% of the county). The largest by land is Stowe town, at 72.5 mi², or 15.7% of the county’s land. The county seat, Hyde Park town, has 2,958 residents. Among those with at least 1,000 residents in 2020, Morristown town grew fastest since then (+12.8%).
| County subdivision | Population 2025 | Since 2020 | Land mi² | Share of county land |
|---|---|---|---|---|
| Morristown town | 6,129 | +12.8% | 50.8 | 11% |
| Stowe town | 5,325 | +1.9% | 72.5 | 15.7% |
| Cambridge town | 3,666 | −4.3% | 62.9 | 13.6% |
| Johnson town | 3,369 | −3.4% | 45.3 | 9.8% |
| Hyde Park townCounty seat | 2,958 | −1.9% | 37.7 | 8.2% |
| Wolcott town | 1,672 | 0% | 38.9 | 8.4% |
| Eden town | 1,291 | −4.2% | 62.9 | 13.6% |
| Elmore town | 876 | −0.6% | 38.9 | 8.4% |
| Waterville town | 664 | −4.3% | 15.7 | 3.4% |
| Belvidere town | 344 | −3.6% | 35.6 | 7.7% |
Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each subdivision inside Lamoille County. Land: 2026 Census Gazetteer. How communities are listed.
Metropolitan area
Lamoille 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
11 ZIP Code Tabulation Areas have land in Lamoille County, and each lies mostly inside the county.
0544205444054640549205652056530565505656056610567205680
ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Post-office-box and single-address ZIP Codes have no tabulation area.
Counties bordering Lamoille County
Lamoille County shares a land border with 5 county equivalents. Each of them has more land than Lamoille County. The largest neighbor is Orleans County (694.5 mi²) and the smallest is Chittenden County (536.9 mi²). Together with its neighbors, Lamoille County forms a block of 3,659.9 mi² of land, of which it holds 12.6%.
| Bordering county equivalent | Land mi² | Size vs. Lamoille | Compare |
|---|---|---|---|
| Orleans County | 694.5 | 1.5× larger | Compare |
| Washington County | 687.1 | 1.5× larger | Compare |
| Caledonia County | 649.2 | 1.4× larger | Compare |
| Franklin County | 631 | 1.4× larger | Compare |
| Chittenden County | 536.9 | 1.2× larger | Compare |
How big is Lamoille County compared with U.S. states?
Lamoille County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 2.2 times as much. Vermont’s county land could hold about 20 areas the size of Lamoille County.
Another way to picture it: the same land area would fill a square about 21.5 miles (34.6 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 Lamoille County?
Lamoille County has more land than 996 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 Lamoille County at #2,300 nationally by total area, 74 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 1.1%, compared with a national county-equivalent median of 1.2% — 0.1 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 Lamoille County in the national ranking. They can be in different states and are not necessarily geographic neighbors.
| Land rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #2225 | Montgomery County, Ohio | 461.4 | Compare |
| #2226 | Lamoille County, Vermont | 461.3 | This county |
| #2227 | Morris County, New Jersey | 461 | 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 44.611192, -72.632659. 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: 1,194,636,488 m²; AWATER: 12,752,267 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 Lamoille County?
Lamoille County, Vermont has 461.3 square miles (1,194.6 km²) of land and 4.924 square miles of water, for a total area of 466.2 square miles. It ranks #2226 of 3,222 U.S. county equivalents by land area.
Is Lamoille County the largest county in Vermont?
No. Lamoille County ranks #13 of 14 in Vermont by land area. The largest is Windsor County, with 969.1 square miles of land.
What counties border Lamoille County?
Lamoille County shares a land border with Washington County, Franklin County, Orleans County, Chittenden County, and Caledonia County.
What is the population of Lamoille County?
The Census Bureau estimates Lamoille County had 26,294 residents on July 1, 2025, ranking #1,614 of 3,222 county equivalents. That is 57 people per square mile of land.
What is the county seat of Lamoille County?
The county seat of Lamoille County is Hyde Park.
What cities and towns are in Lamoille County?
Lamoille County has 10 county subdivisions (cities, towns and townships). The most populous five are Morristown town, Stowe town, Cambridge town, Johnson town, and Hyde Park town.
Is Lamoille County part of a metropolitan area?
No. Lamoille County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.
How many ZIP codes are in Lamoille County?
11 ZIP Code Tabulation Areas have land in Lamoille County, and 11 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.
How does Lamoille County compare with U.S. states?
It has less land than every state. Rhode Island, the smallest, has 2.2 times as much land.
How many acres of land are in Lamoille County?
The land measurement converts to approximately 295,201 acres. Including water, total area is approximately 298,353 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.