Area Code 748

Colorado

Area code 748 serves Colorado, primarily Fort Collins, in the Mountain Time (MT) time zone. It is an overlay area code sharing territory with area code 970.

Overlay Area Code

This area code is part of an overlay region, meaning the same geographic area is served by multiple area codes. Overlay codes were introduced to meet growing demand for phone numbers without requiring existing customers to change their numbers.

This area code shares its geographic region with: area code 970 (Fort Collins).

In service since: 07-Jul-2025

Learn more about overlay and split area codes →

Demographics & Economics

Total Population: 1,755,829
Population Density: 12 people/sq mi
below U.S. average (U.S.: 93 people/sq mi)
Median Household Income: $91,364
above U.S. median (U.S.: $75,144)
Poverty Rate: 10.5%
near U.S. average (U.S.: 11.5%)
Unemployment Rate: 4.3%
above U.S. average (U.S.: 3.6%)
Education Attainment: Bachelor's Degree+
40.3%
above U.S. average (U.S.: 33.7%)
High School or Lower
26.1%

Statistics are population-weighted aggregations from Census ACS 5-year estimates. Population figures are approximate — see Sources & Methodology for details on how area code populations are derived.

See how this area code compares to all US area codes in the income ranking and density ranking.

Time Zone

Mountain Time (MT)

NANPA Relief Status

According to the latest NANPA analysis (July 2026), this area code is not currently listed as exhausting within the next 36 months. No relief planning is in progress for this NPA.

Source: NANPA NPA Relief Planning Reports · See all relief planning statuses

Current Time

Mountain Time (MT)

Prefix Utilization

Geographic Coverage

State

Major Cities

Fort Collins
Greeley
Loveland
Grand Junction
Windsor
Evans
Montrose
Clifton
Durango
Johnstown
Firestone
Fruita
Steamboat Springs
Sterling
Berthoud
Wellington
Fort Morgan
Rifle
Edwards
Glenwood Springs
Severance
Delta
Craig
Cortez

and 160 more cities

Area Code 748 geographic coverage map (light mode)

Demographics

The estimated population served by area code 748 is approximately 1,755,829. The population density is 12 people per square mile, which is lower than the national average of 93. The median household income is $91,364, which is higher than the national median of $75,144. Approximately 40.3% of adults hold a bachelor's degree or higher, compared to the national rate of 33.7%. This rate is higher than the national average. The poverty rate stands at 10.5%, which is near the national rate of 11.5%.

History

Area code 748 serves as an overlay for the same territory as area code 970. It was introduced in 2025 to provide additional phone number capacity for the region. It shares its territory with area code area code 970.

County Coverage

Population-weighted county share based on aggregated ZCTA population (100% = total mapped population for area code 748).

County	Population	Share
Larimer, CO	417,047	23.8%
Weld, CO	367,869	21.0%
Mesa, CO	164,638	9.4%
Garfield, CO	78,632	4.5%
Eagle, CO	70,072	4.0%
Montrose, CO	61,030	3.5%
La Plata, CO	60,981	3.5%
Routt, CO	37,314	2.1%
Pitkin, CO	37,043	2.1%
Gunnison, CO	33,117	1.9%
Delta, CO	32,014	1.8%
Summit, CO	31,624	1.8%
Morgan, CO	30,829	1.8%
San Juan, CO	30,518	1.7%
Archuleta, CO	27,885	1.6%
Montezuma, CO	26,229	1.5%
Grand, CO	24,279	1.4%
Rio Blanco, CO	22,892	1.3%
Logan, CO	22,540	1.3%
Adams, CO	20,016	1.1%
Washington, CO	17,184	1.0%
Boulder, CO	16,997	1.0%
Moffat, CO	16,840	1.0%
Ouray, CO	16,356	0.9%
Yuma, CO	14,740	0.8%
Hinsdale, CO	13,768	0.8%
Mineral, CO	12,923	0.7%
San Miguel, CO	11,870	0.7%
Saguache, CO	11,197	0.6%
Dolores, CO	7,804	0.4%
San Juan, NM	5,662	0.3%
Phillips, CO	4,805	0.3%
Sedgwick, CO	3,825	0.2%
San Juan, UT	1,639	0.1%
Deuel, NE	1,541	0.1%
Jackson, CO	1,422	0.1%
Kit Carson, CO	629	0.0%
Albany, WY	58	0.0%