Longmont, Colorado Population 2020

99,381

Longmont is a city located in Colorado. With a 2020 population of 99,381, it is the 13th largest city in Colorado and the 321st largest city in the United States. Longmont is currently growing at a rate of 1.43% annually and its population has increased by 15.20% since the most recent census, which recorded a population of 86,270 in 2010. Spanning over 30 miles, Longmont has a population density of 3,458 people per square mile.

The average household income in Longmont is $88,137 with a poverty rate of 10.46%. The median rental costs in recent years comes to $1,233 per month, and the median house value is $327,200. The median age in Longmont is 37.7 years, 36.8 years for males, and 38.9 years for females. For every 100 females there are 94.0 males.

Population Growth in Longmont

The city of Longmont has seen continuous growth throughout its history, with recent estimates reflecting a 7.6% population increase since the last census taken in 2010. The educational and employment opportunities, as well as its reputation as one of the safest cities in the state of Colorado, are sure to help drive further population growth in Longmont.

Longmont Demographics

According to the most recent ACS, the racial composition of Longmont was:

  • White: 88.06%
  • Other race: 3.55%
  • Asian: 3.35%
  • Two or more races: 2.92%
  • Native American: 1.13%
  • Black or African American: 0.96%
  • Native Hawaiian or Pacific Islander: 0.05%
The current population of Longmont, Colorado is 99,381, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 96,577.The last official US Census in 2010 recorded the population at 86,270.

Longmont, Colorado Population 2020

Population by Race

Race Population Percentage
White82,10788.06%
Some Other Race3,3113.55%
Asian3,1213.35%
Two or More Races2,7202.92%
American Indian and Alaska Native1,0511.13%
Black or African American8910.96%
Native Hawaiian and Other Pacific Islander430.05%

Longmont Population Pyramid 2020

Longmont Median Age

37.7


Total

36.8


Male

38.9


Female

Longmont Adults

There are 70,459 adults, (13,341 of whom are seniors) in Longmont.

Longmont Age Dependency

63.2

Age Dependency Ratio

23.4

Old Age Dependency Ratio

39.9

Child Dependency Ratio

Longmont Sex Ratio

Female

48,052

51.53%

Male

45,192

48.47%

Longmont Households and Families

Longmont Renter vs Owner Occupied by Household Type

Longmont Household Types

Type Owner Renter
Married76.3%23.7%
All61%39%
Non Family48.4%51.6%
Female42.9%57.1%
Male42.7%57.3%

61.0%

Rate of Home Ownership

Type Count Average Size Owned
All35,6222.661
Married17,2533.2376.3
Non Family12,3471.2948.4
Female4,2603.5342.9
Male1,7623.3542.7

3.19

Average Family Size

2.6

Average Household Size

5.9%

Unmarried (Opposite Sex)

0.2%

Unmarried (Same Sex)

Longmont Education

Education Attained Count Percentage
Less Than 9th Grade2,3583.78%
9th to 12th Grade3,7135.96%
High School Graduate12,73320.43%
Some College13,25321.26%
Associates Degree5,1358.24%
Bachelors Degree15,70225.19%
Graduate Degree9,43415.14%

Longmont Educational Attainment by Race

Name Total High School Bachelors
White46,11744,68321,542
Hispanic12,2237,9961,680
Asian2,1041,8571,283
Other Race1,8421,126197
Multiple Races1,142984399
Black727637212
Native American69961860
Islander34347

The highest rate of high school graduation is among islander people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 60.98%.

Name Average Male Female
Overall$41,384$51,220$32,897
Less Than High School$26,271$30,603$23,236
High School Grad$31,281$36,495$26,118
Some College$37,925$46,500$32,120
Bachelors Degree$55,191$74,388$41,253
Graduate Degree$66,619$94,390$50,082

$41,384

Average Earnings

$51,220

Average Male

$32,897

Average Female

Longmont Language

Longmont Language by Age

Longmont Language

78.76% of Longmont residents speak only English, while 21.24% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 16.95% of the population.

Longmont Poverty

Longmont Poverty by Race

Name Total In Poverty Poverty Rate
White62,9734,6967.46%
Hispanic23,1044,47619.37%
Other3,31159918.09%
Multiple2,72031711.65%
Native1,05126325.02%
Black88914616.42%
Asian3,105782.51%

10.46%

Overall Poverty Rate

9.44%

Male Poverty Rate

11.42%

Female Poverty Rate

Poverty in Longmont

The race most likely to be in poverty in Longmont is Native, with 25.02% below the poverty level.

The race least likely to be in poverty in Longmont is Asian, with 2.51% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.24%. Among those working part-time, it was 12.46%, and for those that did not work, the poverty rate was 17.01%.

Name Poverty
Less Than High School21.66%
High School12.72%
Some College7.33%
Bachelors or Greater3.27%
Name Poverty
Female Unemployed24.60%
Male Unemployed22.74%
Female Employed5.88%
Male Employed4.07%

Longmont Income

Longmont Income by Household Type

Name Median Mean
Households$69,857$88,137
Families$83,307$102,693
Married Families$101,488$118,938
Non Families$41,329$56,166

Longmont Marital Status

Longmont Marital Status

Marriage Rates

49.6%

Overall Marriage Rate

51.6%

Male Marriage Rate

47.8%

Female Marriage Rate

Longmont Married by Age and Sex

Longmont Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 35-44.

Longmont Marital Status by Race

Longmont Veterans

5,167

Number of Veterans

4,620

Male Veterans

547

Female Veterans

War Veterans
Vietnam1,845
First Gulf War900
Second Gulf War665
Korea446
World War II265
Name Veterans % of Total
White4,7367.56%
Hispanic4112.80%
2 or More1429.46%
Black13217.58%
Asian632.64%
Other582.50%
Indian364.40%

$Longmont Veterans by Education

7.46%

Veteran Poverty Rate

26.66%

Veteran Disability Rate

Longmont Employment Status

69.5%

Labor Force Participation

65.3%

Employment Rate

6%

Unemployment Rate

Longmont Place of Birth

Origin of Non-Citizens

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

38.52%

Born in Colorado

88.15%

Native Born

11.85%

Foreign Born

7.05%

Non Citizen

Place of Birth

88.15% of Longmont residents were born in the United States, with 38.52% having been born in Colorado. 7.05% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Year Population Growth Annual Growth Rate
202099,3811,4021.43%
201997,9791,4021.45%
201896,5771,8651.97%
201794,7121,4021.50%
201693,3109931.08%
201592,3171,6821.86%
201490,6354180.46%
201390,2171,3261.49%
201288,8911,2231.40%
201187,6681,2441.44%
201086,42415,3311.97%
200071,09319,5383.27%
199051,5558,6131.84%
198042,94219,7336.35%
197023,20911,7207.28%
196011,4893,3903.56%
19508,0996930.90%
19407,4061,3772.08%
19306,0291810.31%
19205,8481,5923.23%
19104,2562,0566.82%
19002,2000.00%