Boulder County, CO Demographics

What is the population of Boulder County?

There are 434,394 residents in Boulder County, with a median age of 39.5. Of this, 50.76% are males and 49.24% are females. US-born citizens make up 88.84% of the resident pool in Boulder County, while non-US-born citizens account for 6.39%. Additionally, 4.77% of the population is represented by non-citizens. A total of 341,620 people in Boulder County currently live in the same house as they did last year.
Y-o-Y Change
Total Population 434,394 0.7%
Male Population 220,494 0.9%
Female Population 213,900 0.4%
Male Population 50.76%
Female Population 49.24%
Y-o-Y Change
Median Age 39.5 -0.5%
Citizen U.S. Born 385,899 0.7%
Citizen not U.S. Born 27,765 2.2%
Not Citizen 20,730 -1.0%
Citizen U.S. Born 88.84%
Citizen not U.S. Born 6.39%
Not Citizen 4.77%
Y-o-Y Change
Moved from Abroad 3,531 -1.0%
Moved from Same County 38,274 1.4%
Moved from Same State 26,615 1.5%
Moved from Different State 21,356 -1.4%
Same House as Last Year 341,620 0.8%
Moved from Abroad 0.82%
Moved from Same County 8.87%
Moved from Same State 6.17%
Moved from Different State 4.95%
Same House as Last Year 79.19%

What are the employment statistics in Boulder County?

White-collar workers make up 86.79% of the working population in Boulder County, while blue-collar employees account for 13.21%. There are also 30,450 entrepreneurs in Boulder County (12.81% of the workforce); 154,556 workers employed in private companies (65.02%); and 33,222 people working in governmental institutions (13.98%).
Y-o-Y Change
White Collar 206,294 1.8%
Blue Collar 31,398 -4.1%
White Collar 86.79%
Blue Collar 13.21%
Y-o-Y Change
Self Employees 30,450 0.7%
Private Companies 154,556 0.8%
Governmental Workers 33,222 1.5%
Not for Profit Companies 19,464 1.6%
Self Employees 12.81%
Private Companies 65.02%
Governmental Workers 13.98%
Not for Profit Companies 8.19%

How many households are there in Boulder County?

There are a total of 172,144 households in Boulder County, each made up of around 2 members. Family establishments represent 59.38% of these Boulder County households, while non-family units account for the remaining 40.62%. Additionally, 28.03% of households have children and 71.97% of households are without children.
Y-o-Y Change
Total households 172,144 1.7%
Average People per Household 2 N/A
Family Households 102,225 0.3%
Non-Family Households 69,919 3.9%
Family Households 59.38%
Non-Family Households 40.62%
Y-o-Y Change
Households with Children 48,248 0.0%
Households without Children 123,896 2.4%
Households with Children 28.03%
Households without Children 71.97%

What are the median and average incomes in Boulder County?

The average annual household income in Boulder County is $143,793, while the median household income sits at $111,638 per year. Residents aged 25 to 44 earn $120,778, while those between 45 and 64 years old have a median wage of $151,531. In contrast, people younger than 25 and those older than 65 earn less, at $59,015 and $84,338, respectively.
Y-o-Y Change
Average Household Income $143,793 11.9%
Median Household Income $111,638 12.1%
People below Poverty Level 4 N/A
People above Poverty Level 378,709 0.3%

How many homeowners and renters are there in Boulder County?

There are 180,686 housing units in Boulder County, and the median year in which these properties were built is 1979. Of the 172,144 occupied housing units in Boulder County, 65.45% are owner-occupied, while 34.55% have renters living in them. Meanwhile, properties bought with mortgages account for 69.43% of the units, and the median value of a home with a mortgage is $662,500. In general, housing costs reach $1,871 per month in Boulder County.
Y-o-Y Change
Housing Units 180,686 1.7%
Median Year Built 1979 0.1%
Built in 1939 or Earlier 9,028 -0.8%
Built between 1940 and 1949 2,014 -1.0%
Built between 1950 and 1959 8,527 2.8%
Built between 1960 and 1969 16,446 0.4%
Built between 1970 and 1979 32,181 -3.0%
Built between 1980 and 1989 26,386 -1.8%
Built between 1990 and 1999 34,725 0.2%
Built between 2000 and 2009 27,286 1.9%
Built between 2010 and 2019 22,492 13.4%
Built in 2020 or Later 1,601 177.9%
Y-o-Y Change
Occupied Housing Units 172,144 1.7%
Owner Occupied 112,674 1.1%
Renter Occupied $59,470 2.8%
Owner Occupied 65.45%
Renter Occupied 34.55%
Y-o-Y Change
With Mortgage 78,224 0.1%
Without Mortgage 34,450 3.7%
Median Value with Mortgage $662,500 15.8%
Median Value without Mortgage $614,500 14.3%
Median Housing Costs per Month $1,871 8.7%
With Mortgage 69.43%
Without Mortgage 30.57%

What is the level of education in Boulder County?

Approximately 18.4% of the population in Boulder County holds a high school degree (that's 62,768 residents), while 19.99% have attained a college certificate (68,197 locals) and 31.37% have a bachelor's degree (106,999 people).
Y-o-Y Change
No High School 5,551 -1.0%
Some High School 62,768 3.9%
Some College 68,197 -1.3%
Associate Degree 21,873 -1.6%
Bachelor's Degree 106,999 1.6%
Graduate Degree 75,704 1.2%
No High School 1.63%
Some High School 18.4%
Some College 19.99%
Associate Degree 6.41%
Bachelor's Degree 31.37%
Graduate Degree 22.19%

What is the marital status of Boulder County residents?

A total of 134,328 people in Boulder County have never been married (which represents 36.46% of the total population), while 178,188 of them are wedded (48.37%). Separated and divorced residents are in smaller numbers, at 2,929 (0.8%) and 39,947 (10.84%), respectively.
Y-o-Y Change
Never Married 134,328 3.9%
Married 178,188 0.7%
Separated 2,929 -8.6%
Widowed 13,029 0.9%
Divorced 39,947 39,947.0%
Never Married 36.46%
Married 48.37%
Separated 0.8%
Widowed 3.54%
Divorced 10.84%

What are the most common means of transportation in Boulder County?

The top three means of transportation people in Boulder County use to get to work are: car, walking and bus or trolley bus. A total of 155,770 residents commute by car, 7,893 prefer going to work by walking and 7,001 by bus or trolley bus
Y-o-Y Change
Car 155,770 -3.3%
Bus or TrolleyBus 7,001 -9.4%
Railroad 38 -78.3%
Ferryboat 14 -75.9%
Bicycle 6,215 -5.5%
Motorcycle 372 -6.5%
TaxiCab 82 -35.4%
Walk 7,893 6.8%

What is the median and average household income in Boulder County by zipcode?

ZipCode Population Number of Households Median Income Average Income
80020 53,475 20,795 $112,941.00 $134,524.00
80025 45 14 $0.00 $0.00
80026 32,675 13,639 $109,414.00 $152,494.00
80027 34,161 12,610 $139,412.00 $175,550.00
80301 24,593 11,858 $88,846.00 $127,289.00
80302 30,569 12,612 $56,093.00 $121,016.00
80303 24,865 11,595 $74,255.00 $126,551.00
80304 25,617 11,101 $111,638.00 $175,523.00
80305 16,280 6,853 $114,344.00 $161,267.00
80310 7,597 0 $0.00 $0.00

Methodology & Disclaimers

Demographic data shown in this section was gathered from the latest U.S. Census Bureau release, the 2022 American Community Survey. The information is updated yearly, as soon as new data is made available by the US Census Bureau.
No representation, guarantee or warranty is made as to the accuracy or completeness of information modified or aggregated for specific neighborhoods and/or zip codes.