Jefferson County, CO Demographics
What is the population of Jefferson County?
There are 740,235 residents in Jefferson County, with a median age of 40. Of this, 50.24% are males and 49.76% are females. US-born citizens make up 91.76% of the resident pool in Jefferson County, while non-US-born citizens account for 5.3%. Additionally, 2.95% of the population is represented by non-citizens.
A total of 623,892 people in Jefferson County currently live in the same house as they did last year.
| Y-o-Y Change | ||
| Total Population | 740,235 | -0.0% |
| Male Population | 371,923 | -0.1% |
| Female Population | 368,312 | 0.0% |
Male Population 50.24%
Female Population 49.76%
| Y-o-Y Change | ||
| Median Age | 40 | 0.2% |
| Citizen U.S. Born | 679,203 | -0.0% |
| Citizen not U.S. Born | 39,215 | 0.6% |
| Not Citizen | 21,817 | -1.6% |
Citizen U.S. Born 91.76%
Citizen not U.S. Born 5.3%
Not Citizen 2.95%
| Y-o-Y Change | ||
| Moved from Abroad | 2,827 | -1.1% |
| Moved from Same County | 39,259 | -4.3% |
| Moved from Same State | 45,000 | -1.9% |
| Moved from Different State | 22,399 | 2.7% |
| Same House as Last Year | 623,892 | 0.3% |
Moved from Abroad 0.39%
Moved from Same County 5.35%
Moved from Same State 6.14%
Moved from Different State 3.05%
Same House as Last Year 85.07%
What are the employment statistics in Jefferson County?
White-collar workers make up 85.61% of the working population in Jefferson County, while blue-collar employees account for 14.39%. There are also 96,254 entrepreneurs in Jefferson County (11.63% of the workforce); 557,180 workers employed in private companies (67.32%); and 109,890 people working in governmental institutions (13.28%).
| Y-o-Y Change | ||
| White Collar | 708,588 | 101.3% |
| Blue Collar | 119,060 | 90.0% |
White Collar 85.61%
Blue Collar 14.39%
| Y-o-Y Change | ||
| Self Employees | 96,254 | 106.5% |
| Private Companies | 557,180 | 98.0% |
| Governmental Workers | 109,890 | 103.2% |
| Not for Profit Companies | 64,324 | 97.0% |
Self Employees 11.63%
Private Companies 67.32%
Governmental Workers 13.28%
Not for Profit Companies 7.77%
How many households are there in Jefferson County?
There are a total of 309,494 households in Jefferson County, each made up of around 2 members. Family establishments represent 61.69% of these Jefferson County households, while non-family units account for the remaining 38.31%. Additionally, 26.05% of households have children and 73.95% of households are without children.
| Y-o-Y Change | ||
| Total households | 309,494 | 0.8% |
| Average People per Household | 2 | -17.6% |
| Family Households | 190,940 | -0.3% |
| Non-Family Households | 118,554 | 2.8% |
Family Households 61.69%
Non-Family Households 38.31%
| Y-o-Y Change | ||
| Households with Children | 80,629 | -1.2% |
| Households without Children | 228,865 | 1.6% |
Households with Children 26.05%
Households without Children 73.95%
What are the median and average incomes in Jefferson County?
The average annual household income in Jefferson County is $143,939, while the median household income sits at $110,013 per year. Residents aged 25 to 44 earn $124,375, while those between 45 and 64 years old have a median wage of $127,819. In contrast, people younger than 25 and those older than 65 earn less, at $63,018 and $77,871, respectively.
| Y-o-Y Change | ||
| Average Household Income | $143,939 | 4.6% |
| Median Household Income | $110,013 | 0.7% |
| People below Poverty Level | 48,690 | 0.8% |
| People above Poverty Level | 676,045 | -0.0% |
How many homeowners and renters are there in Jefferson County?
There are 324,500 housing units in Jefferson County, and the median year in which these properties were built is 1980. Of the 309,494 occupied housing units in Jefferson County, 69.3% are owner-occupied, while 30.7% have renters living in them.
Meanwhile, properties bought with mortgages account for 70.76% of the units, and the median value of a home with a mortgage is $587,850. In general, housing costs reach $1,937 per month in Jefferson County.
| Y-o-Y Change | ||
| Housing Units | 324,500 | 1.1% |
| Median Year Built | 1980 | 0.0% |
| Built in 1939 or Earlier | 11,248 | 4.8% |
| Built between 1940 and 1949 | 6,254 | 0.7% |
| Built between 1950 and 1959 | 26,490 | -2.2% |
| Built between 1960 and 1969 | 37,852 | -1.3% |
| Built between 1970 and 1979 | 76,531 | -0.8% |
| Built between 1980 and 1989 | 51,758 | 0.2% |
| Built between 1990 and 1999 | 48,031 | -0.1% |
| Built between 2000 and 2009 | 34,056 | 2.5% |
| Built between 2010 and 2019 | 28,949 | 8.5% |
| Built in 2020 or Later | 3,331 | 92.7% |
| Y-o-Y Change | ||
| Occupied Housing Units | 309,494 | 0.8% |
| Owner Occupied | 214,491 | 0.6% |
| Renter Occupied | 95,003 | 1.5% |
Owner Occupied 69.3%
Renter Occupied 30.7%
| Y-o-Y Change | ||
| With Mortgage | 151,774 | -0.2% |
| Without Mortgage | 62,717 | 2.3% |
| Median Value with Mortgage | $587,850 | 6.2% |
| Median Value without Mortgage | $563,400 | 3.0% |
| Median Housing Costs per Month | $1,937 | 6.3% |
With Mortgage 70.76%
Without Mortgage 29.24%
What is the level of education in Jefferson County?
Approximately 23.62% of the population in Jefferson County holds a high school degree (that's 142,070 residents), while 19.64% have attained a college certificate (118,114 locals) and 30.64% have a bachelor's degree (184,273 people).
| Y-o-Y Change | ||
| No High School | 9,265 | -6.6% |
| Some High School | 142,070 | -2.4% |
| Some College | 118,114 | -18.0% |
| Associate Degree | 43,606 | -0.4% |
| Bachelor's Degree | 184,273 | 2.6% |
| Graduate Degree | 104,079 | 4.0% |
No High School 1.54%
Some High School 23.62%
Some College 19.64%
Associate Degree 7.25%
Bachelor's Degree 30.64%
Graduate Degree 17.31%
What is the marital status of Jefferson County residents?
A total of 197,608 people in Jefferson County have never been married (which represents 31.22% of the total population), while 327,189 of them are wedded (51.69%). Separated and divorced residents are in smaller numbers, at 5,821 (0.92%) and 74,724 (11.81%), respectively.
| Y-o-Y Change | ||
| Never Married | 197,608 | 1.6% |
| Married | 327,189 | -0.5% |
| Separated | 5,821 | -6.2% |
| Widowed | 27,587 | -3.0% |
| Divorced | 74,724 | 0.5% |
Never Married 31.22%
Married 51.69%
Separated 0.92%
Widowed 4.36%
Divorced 11.81%
What are the most common means of transportation in Jefferson County?
The top three means of transportation people in Jefferson County use to get to work are: car, walking and bus or trolley bus. A total of 295,857 residents commute by car, 5,504 prefer going to work by walking and 4,935 by bus or trolley bus
| Y-o-Y Change | ||
| Car | 295,857 | -4.2% |
| Bus or TrolleyBus | 4,935 | -16.5% |
| Railroad | 402 | -17.8% |
| Ferryboat | 306 | 60.2% |
| Bicycle | 2,580 | 3.1% |
| Motorcycle | 546 | -11.8% |
| TaxiCab | 203 | -23.7% |
| Walk | 5,504 | 2.2% |
What is the median and average household income in Jefferson County by zipcode?
| ZipCode | Population | Number of Households | Median Income | Average Income |
|---|---|---|---|---|
| 80002 | 20,975 | 9,451 | $92,827 | $114,531 |
| 80003 | 35,381 | 13,871 | $82,754 | $103,516 |
| 80004 | 34,580 | 14,548 | $99,576 | $122,778 |
| 80005 | 28,883 | 11,276 | $136,360 | $157,760 |
| 80007 | 18,290 | 6,482 | $171,017 | $207,085 |
| 80020 | 53,589 | 21,077 | $114,039 | $137,986 |
| 80021 | 35,562 | 16,402 | $105,645 | $126,845 |
| 80031 | 36,350 | 14,628 | $106,244 | $135,881 |
| 80033 | 26,841 | 12,650 | $84,719 | $110,340 |
| 80123 | 45,364 | 19,148 | $106,731 | $144,183 |
Methodology & Disclaimers
Demographic data shown in this section was gathered from the latest U.S. Census Bureau release, the 2023 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.