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Granby, Colorado
Statutory Town
Town of Granby
Granby Town Hall
Granby Town Hall
"The heart of something grand"
Location of the Town of Granby in Grand County, Colorado.
Location of the Town of Granby in Grand County, Colorado.
Granby, Colorado is located in the United States
Granby, Colorado
Granby, Colorado
Location in the United States
Country  United States
State  Colorado
County Grand County
Founded 1905
Incorporated (town) December 11, 1905
 • Type Statutory Town
 • Total 12.682 sq mi (32.845 km2)
 • Land 12.682 sq mi (32.845 km2)
 • Water 0 sq mi (0.000 km2)
7,935 ft (2,428 m)
 • Total 2,079
 • Density 164/sq mi (63/km2)
 • Grand County
Time zone UTC−07:00 (MST)
 • Summer (DST) UTC−06:00 (MDT)
ZIP code
Area code(s) 970
FIPS code 08-31605
GNIS feature ID 0178402

The Town of Granby is the Statutory Town that is the most populous municipality in Grand County, Colorado, United States. The town population was 2,079 at the 2020 United States Census. Granby is situated along U.S. Highway 40 in the Middle Park basin, and it is about 85 miles (137 km) northwest of Denver and 14 miles (23 km) southwest of Rocky Mountain National Park.


Granby sits at 7,935 feet (2,419 m) above sea level in the valley of the Fraser River, 2 miles (3 km) east of its mouth at the Colorado River. It is located in eastern Grand County at 40°5′11″N 105°56′11″W / 40.08639°N 105.93639°W / 40.08639; -105.93639 (40.086396, -105.936487), in an area subject to average annual rainfall of 12+14 inches and annual snowfall of more than 128 inches (3,300 mm).

U.S. Route 40 passes through the center of town as Agate Avenue, leading south and east over Berthoud Pass to the Denver area, west 10 miles (16 km) to Hot Sulphur Springs, the Grand County seat. Kremmling is 27 miles (43 km) to the west on US 40. U.S. Route 34 intersects US 40 on the west side of Granby and leads northeast into Rocky Mountain National Park, crossing the mountains as Trail Ridge Road and reaching Estes Park 60 miles (97 km) northeast of Granby.

According to the United States Census Bureau, Granby has a total area of 12.8 square miles (33.1 km2), all land.


Historical population
Census Pop.
1910 40
1920 32 −20.0%
1930 90 181.3%
1940 251 178.9%
1950 463 84.5%
1960 503 8.6%
1970 554 10.1%
1980 963 73.8%
1990 966 0.3%
2000 1,525 57.9%
2010 1,864 22.2%
2020 2,079 11.5%
U.S. Decennial Census

As of the census of 2000, there were 1,525 people, 579 households, and 390 families residing in the town. The population density was 856.2 people per square mile (330.8/km2). There were 628 housing units at an average density of 352.6 per square mile (136.2/km2). The racial makeup of the town was 96.26% White, 0.46% African American, 0.26% Native American, 0.98% Asian, 0.07% Pacific Islander, 1.44% from other races, and 0.52% from two or more races. Hispanic or Latino of any race were 3.61% of the population.

There were 579 households, out of which 37.3% had children under the age of 18 living with them, 55.3% were married couples living together, 7.6% had a female householder with no husband present, and 32.5% were non-families. 21.9% of all households were made up of individuals, and 6.4% had someone living alone who was 65 years of age or older. The average household size was 2.59 and the average family size was 3.05.

In the town, the population was spread out, with 28.1% under the age of 18, 9.1% from 18 to 24, 33.5% from 25 to 44, 22.7% from 45 to 64, and 6.6% who were 65 years of age or older. The median age was 34 years. For every 100 females, there were 98.6 males. For every 100 females age 18 and over, there were 104.3 males.

The median income for a household in the town was $46,667, and the median income for a family was $55,250. Males had a median income of $35,455 versus $24,417 for females. The per capita income for the town was $21,224. About 4.0% of families and 5.8% of the population were below the poverty line, including 3.9% of those under the age of 18 and 9.0% of those ages 65 and older.

Local history

Many Granby and Grand County residents are descended from pioneer settlers who arrived before the country was fully surveyed. Early families established themselves under the Homestead Act of 1862, which allowed easy access to land to those who would inhabit and improve upon the territory.

Since the turn of the century, families have contended for prime ranch land. The Huddlers and Cooks are descended from original homesteaders. Their waning ranch once covered approximately 10,000 acres (40 km2) and was rich in cattle and hay.


Granby during the winter
Granby in winter.
Granby, CO, Public Library IMG 5404
The new Granby Public Library.
See also: Granby (Amtrak station)

Amtrak, the national passenger rail system, provides daily service to Granby, operating its California Zephyr daily in both directions between Chicago and Emeryville, California, across the bay from San Francisco.

Granby-Grand County Airport (IATA: GNBICAO: KGNBFAA LID: GNB), a small airport one mile east of town, serves as a stopover for transient general aviation flights, as well as hosts some local aviation activity. There are currently no scheduled passenger carrier flights into or out of the airport, which features a 5,000-foot-long (1,500 m) by 75-foot-wide (23 m) asphalt runway. Services at the airport are limited to aviation fuel for both piston and jet/turboprop aircraft. According to the Official Airline Guide (OAG), the airport was previously served by Rocky Mountain Airways which operated scheduled passenger flights to Denver during the mid 1970s with small de Havilland Canada DHC-6 Twin Otter turboprop aircraft.


This climate type is dominated by the winter season, a long, bitterly cold period with short, clear days, relatively little precipitation mostly in the form of snow, and low humidity. According to the Köppen Climate Classification system, Granby has a subarctic climate, abbreviated "Dfc" on climate maps.

Climate data for Granby, Colorado
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average high °F (°C) 28
Average low °F (°C) 1
Precipitation inches (mm) 1.2
Source: Weatherbase

Notable residents

  • Penny Rafferty Hamilton, aviation educator, writer, and photographer
  • Marvin Heemeyer, perpetrator of the Granby Rampage, in which he built and operated an armoured Bulldozer dubbed the "Killdozer of Granby"
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