Garfield County area

Garfield County, Colorado covers 2,955.8 square miles: 2,947.4 square miles of land and 8.381 square miles of water. Its county seat is Glenwood Springs. An estimated 63,474 people lived there in 2025.

Official Census measurements · GEOID 080452026 Gazetteer · retrieved September 27, 2026
Land area2,947.4 mi²
Water area8.381 mi²
Population (2025)63,474
People per mi²22

County outline

Generalized outline of Garfield County, Colorado
2025 Census cartographic boundary, fitted to this frame. County maps are not at a common scale. The 2026 area measurements below come from the separate Gazetteer release. Map source and limitations.

Where Garfield County is located

Garfield County highlighted on a map of all U.S. county equivalents. About the maps

Area breakdown

Land accounts for 99.7% of Garfield County’s measured area and water for 0.3%. Its combined area converts to 7,655.5 square kilometers or approximately 1,891,716 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land2,947.4257,633.7961,886,352
Water8.38121.7075,363.8
Total2,955.8067,655.5021,891,715.8

How Garfield County compares

By original Census land area, Garfield County ranks #8 of 64 in Colorado and #176 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 2.059 times the Colorado county-equivalent median of 1,431.5 square miles. It accounts for 2.8% of the combined county land area in the state.

See the complete Colorado ranking · What counts as a county equivalent?

Population and density of Garfield County

The Census Bureau estimates that 63,474 people lived in Garfield County on July 1, 2025. That ranks #872 of 3,222 county equivalents nationally and #13 of 64 in Colorado. Since the April 1, 2020 estimates base of 61,686, the population has grown by 1,788 (+2.9%), compared with +4.1% for Colorado as a whole.

With 2,947.4 square miles of land, that is 22 people per square mile (8.3 per km²), placing Garfield County #2,271 nationally for density and #23 in Colorado. The median county equivalent has 47 people per square mile; the Colorado median is 11. Put another way, there are about 30 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate61,79362,12262,45863,21563,82063,474
Change—+329+336+757+605−346

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 Garfield County

7 incorporated places lie at least partly in Garfield County. Together they are home to 38,006 people (59.9%); the other 25,468 (40.1%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Rifle city, with 10,844 residents in the county. The county seat, Glenwood Springs city, has 10,395 residents. Among places with at least 1,000 residents in 2020, Silt town grew fastest since then (+5.4%).

Incorporated placePopulation 2025Since 2020Land mi²
Rifle city10,844+3.9%7.097
Glenwood Springs cityCounty seat10,395+4.4%5.835
Carbondale town6,762+4.8%2.076
New Castle town4,896−0.4%2.496
Silt town3,743+5.4%1.682
Parachute town1,366−1.6%2.572
Carbonate town0—0.992

Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Garfield County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.

Metropolitan area

Garfield County is a central county of the Rifle, CO Micropolitan Statistical Area. Its 2 county equivalents have 80,099 residents on 3,918.1 square miles of land; Garfield County accounts for 75.2% of the land and 79.2% of the residents. By combined land it ranks #37 of 542 micropolitan areas, and #75 by population. It belongs to the Edwards-Rifle, CO Combined Statistical Area.

County equivalentPopulation 2025Land mi²
Garfield County63,4742,947.4
Pitkin County16,625970.7

ZIP codes

8 ZIP Code Tabulation Areas have land in Garfield County; 6 of them have most of their land inside the county, and the others mainly cover neighboring areas.

8160181623816308163581637816478165081652

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 Garfield County

Garfield County shares a land border with 7 county equivalents, including 2 in Utah. It has more land than 3 of them. The largest neighbor is Uintah County (4,482.9 mi²) and the smallest is Pitkin County (970.7 mi²). Together with its neighbors, Garfield County forms a block of 22,670 mi² of land, of which it holds 13%.

Map of Garfield County and the 7 county equivalents that border it Rio Blanco County, Colorado: 3,221 mi² landMesa County, Colorado: 3,328.7 mi² landEagle County, Colorado: 1,684.5 mi² landPitkin County, Colorado: 970.7 mi² landRoutt County, Colorado: 2,362 mi² landUintah County, Utah: 4,482.9 mi² landGrand County, Utah: 3,672.9 mi² land
Garfield County (dark) and its bordering county equivalents. Select a neighbor to open its profile. Drawn from the 2025 Census cartographic boundaries in an equal-area projection. How borders are determined.
Bordering county equivalentLand mi²Size vs. GarfieldCompare
Uintah CountyUtah4,482.91.5× largerCompare
Grand CountyUtah3,672.91.2× largerCompare
Mesa County3,328.71.1× largerCompare
Rio Blanco County3,2211.1× largerCompare
Routt County2,3621.2× smallerCompare
Eagle County1,684.51.7× smallerCompare
Pitkin County970.73× smallerCompare

How big is Garfield County compared with U.S. states?

Garfield County has more land than 2 of the 50 states. It is about 1.5 times the land area of Delaware (1,948.6 mi²), while Connecticut, the next larger state, has 1.6 times as much land (4,842.5 mi²). Colorado’s county land could hold about 35 areas the size of Garfield County.

Land area: Garfield County and the closest-sized states
Delaware1,948.6 mi²
Garfield County2,947.4 mi²
Connecticut4,842.5 mi²

Another way to picture it: the same land area would fill a square about 54.3 miles (87.4 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 Garfield County?

Garfield County has more land than 3,046 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Garfield County2,947.4 mi²
Colorado median1,431.5 mi²
National median604.5 mi²

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 Garfield County at #191 nationally by total area, 15 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% — 0.9 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 Garfield County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#175Tehama County, California2,949.1Compare
#176Garfield County, Colorado2,947.4This county
#177Chelan County, Washington2,921.2Compare

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 39.599352, -107.909780. 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: 7,633,796,637 m²; AWATER: 21,707,243 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.

Download the official county source ZIP ↗ · Methodology

Common questions

How big is Garfield County?

Garfield County, Colorado has 2,947.4 square miles (7,633.8 km²) of land and 8.381 square miles of water, for a total area of 2,955.8 square miles. It ranks #176 of 3,222 U.S. county equivalents by land area.

Is Garfield County the largest county in Colorado?

No. Garfield County ranks #8 of 64 in Colorado by land area. The largest is Las Animas County, with 4,772.9 square miles of land.

What counties border Garfield County?

Garfield County shares a land border with Rio Blanco County, Mesa County, Eagle County, Pitkin County, Routt County, Uintah County, Utah, and Grand County, Utah.

What is the population of Garfield County?

The Census Bureau estimates Garfield County had 63,474 residents on July 1, 2025, ranking #872 of 3,222 county equivalents. That is 22 people per square mile of land.

What is the county seat of Garfield County?

The county seat of Garfield County is Glenwood Springs.

What cities and towns are in Garfield County?

Garfield County has 7 incorporated places. The most populous five are Rifle city, Glenwood Springs city, Carbondale town, New Castle town, and Silt town; 25,468 residents live outside any incorporated place.

Is Garfield County part of a metropolitan area?

Yes. It is a central county of the Rifle, CO Micropolitan Statistical Area, which has 2 county equivalents and 80,099 residents.

How many ZIP codes are in Garfield County?

8 ZIP Code Tabulation Areas have land in Garfield County, and 6 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

How does Garfield County compare with U.S. states?

It has more land than 2 of the 50 states, including Delaware (1,948.6 square miles of land).

How many acres of land are in Garfield County?

The land measurement converts to approximately 1,886,352 acres. Including water, total area is approximately 1,891,716 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.

Cite this county

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