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Longmont city, Colorado Demographics & Population 2026

As of 2026, Longmont city, Colorado has a total population of 98,958, the 14th largest city in Colorado, with a median household income of $89,724, which is 3% lower than the state average. The poverty rate is 8.6%.

Longmont city Quick Facts

Population 98,958
Median Household Income $89,724
Median Home Value $541,400
Poverty Rate 8.6%
Unemployment Rate 4.3%
Median Age 40.1 years
Homeownership Rate 62.6%
Affordability Ratio 6.0x
Bachelor's Degree or Higher 46.3%
High School Graduation Rate 92.0%
Diversity Index 48/100
Population 98,958 14th of 471
Median Income $89,724 above average
Poverty Rate 8.6% 31% lower national
Median Home Value $541,400 above average

How Longmont city Compares

Economy & Housing

Employment

4.3% Unemployment Rate State: 4.5% | National: 5.2%
68.7% Labor Force Participation

Housing Overview

Owner 62.6%
Renter 37.4%
Affordability Index Expensive
6.0x home value to income ratio

People & Demographics

Diversity Index

48out of 100
Moderate Diversity

Moderate diversity with one or two groups making up the majority.

State average: 51 | National average: 60

Education

Longmont city Rankings in Colorado

#14 Population of 471
#159 Median Income of 471
#154 Education of 471
#139 Home Value of 471

Explore Colorado Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Cities Similar to Longmont city

These cities in the same state have comparable population and economic profiles.

CityPopulationMedian IncomeHome ValueBachelor's+Poverty
Boulder city106,274$85,364$982,60076.8%21.8%
Westminster city115,546$96,145$497,40044.0%7.0%
Greeley city109,421$68,650$369,60026.7%14.7%
Centennial city107,386$128,167$626,70061.9%3.1%
Loveland city77,350$82,592$453,10039.1%7.7%

Population Overview

Longmont city is a mid-sized community located in Colorado. The total population is 98,958. It ranks as the 14th most populous out of 471 cities and towns in Colorado.

Age Demographics

The median age in Longmont city is 40.1 years. This is 7% higher than the state median of 37.5 years.

Economy, Income & Housing

The median household income in Longmont city is $89,724. This is 3% lower than the state median of $92,470. Compared to the national median of $78,538, household income here is 14% higher. The poverty rate stands at 8.6%. This is 9% lower than the state poverty rate of 9.4%. The unemployment rate is 4.3%. This is 3% lower than the state rate of 4.5%. The median home value is $541,400. Housing costs are 8% higher than the state median of $502,200. The home-value-to-income ratio is 6.0x. 62.6% of occupied housing units are owner-occupied. This homeownership rate is 6% lower than the state average of 66.3%.

Race & Ethnicity

The largest racial or ethnic group in Longmont city is White (non-Hispanic), making up 67.5% of the population. Hispanic or Latino residents account for 24.2%. The Black or African American population (0.9%) is well below the state average of 3.8%.

Education

46.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 4% higher than the state rate of 44.7%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 92.0%. Notably, 18.3% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Longmont city, Colorado is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Colorado state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 471 Census-designated places in Colorado. For official data, visit data.census.gov.

Free data download: Get all Colorado city and county demographics as CSV. Download Cities CSV | Download Counties CSV

Frequently Asked Questions

What is the population of Longmont city, Colorado?

Longmont city, Colorado has a population of 98,958 according to the most recent U.S. Census ACS 5-Year Estimates.

What is the median household income in Longmont city, CO?

The median household income in Longmont city is $89,724, which is 14% higher the national median of $78,538.

What is the poverty rate in Longmont city, CO?

The poverty rate in Longmont city is 8.6%. This means approximately 8,403 residents live below the federal poverty line.

What is the racial makeup of Longmont city, Colorado?

Longmont city's population is 67.5% White, 0.9% Black, 24.2% Hispanic/Latino, and 2.9% Asian.

What is the median home value in Longmont city, CO?

The median home value in Longmont city is $541,400. The home-value-to-income ratio is 6.0x.

How educated is Longmont city, Colorado?

46.3% of adults (25+) in Longmont city hold a bachelor's degree or higher, and 18.3% hold a graduate or professional degree.