Who is the Jefferson County Assessor?

Scot Kersgaard (Democratic) is the Assessor of Jefferson County, Colorado. The seat was on the November 3, 2026 ballot; the count isn't certified yet.

Who is the Jefferson County Clerk and Recorder?

Amanda M. Gonzalez (Democratic) is the Clerk and Recorder of Jefferson County, Colorado. The seat was on the November 3, 2026 ballot; the count isn't certified yet.

Who is the Jefferson County Coroner?

Annette Cannon (Democratic) is the Coroner of Jefferson County, Colorado. The seat was on the November 3, 2026 ballot; the count isn't certified yet.

Who is the Jefferson County Sheriff?

Regina "Reggie" Marinelli (Democratic) is the Sheriff of Jefferson County, Colorado. The seat was on the November 3, 2026 ballot; the count isn't certified yet.

Who is the Jefferson County Surveyor?

Robert J. Hennessy (Republican) is the Surveyor of Jefferson County, Colorado. The seat was on the November 3, 2026 ballot; the count isn't certified yet.

Who is the Jefferson County Treasurer?

Jerry DiTullio (Democratic) is the Treasurer of Jefferson County, Colorado. The seat was on the November 3, 2026 ballot; the count isn't certified yet.

Who are the Jefferson County commissioners?

Rachel Zenzinger (District 1); Andy Kerr (District 2); Lesley Dahlkemper (District 3).

What is the population of Jefferson County?

About 579,377 people, with a median age of 40.5; the median household income is $110,656 and 6.7% live below the poverty line (Census Bureau, American Community Survey 2020–2024 5-year estimates).

What is the unemployment rate in Jefferson County?

4.1% in September 2026 (preliminary): 13,591 people unemployed in a labor force of 330,197, against 3.6% a year earlier (Bureau of Labor Statistics, Local Area Unemployment Statistics, not seasonally adjusted).

How many local governments are there in Jefferson County?

178 in the Census Bureau's 2022 Census of Governments: 1 county, 8 municipal, 1 school district and 168 special district governments.

Jefferson County, CO elected officials: county commissioners, sheriff, school board and cities

Who holds every elected county, school board, city and special-district office in Jefferson County: 9 seats on 7 elected bodies. 7 seats were on the November 3, 2026 ballot; they update once the county certifies its results.

Board of County Commissioners

Jefferson County Board of Commissioners

Each member is elected by the voters of their district.

Office	Who holds it now	Next term
County Commissioner, District 1	Rachel Zenzinger Democratic source
County Commissioner, District 2	Andy Kerr Democratic source
County Commissioner, District 3	Lesley Dahlkemper Democratic source	On the Nov 3, 2026 ballot: count not certified yet

County officers

Office	Who holds it now	Next term
Assessor	Scot Kersgaard Democratic source	On the Nov 3, 2026 ballot: count not certified yet
Clerk and Recorder	Amanda M. Gonzalez Democratic source	On the Nov 3, 2026 ballot: count not certified yet
Coroner	Annette Cannon Democratic source	On the Nov 3, 2026 ballot: count not certified yet
Sheriff	Regina "Reggie" Marinelli Democratic source	On the Nov 3, 2026 ballot: count not certified yet
Surveyor	Robert J. Hennessy Republican source	On the Nov 3, 2026 ballot: count not certified yet
Treasurer	Jerry DiTullio Democratic source	On the Nov 3, 2026 ballot: count not certified yet

How many local governments Jefferson County has

The Census Bureau's 2022 Census of Governments counts 178 local governments in Jefferson County. This page lists the ones whose offices are elected.

Kind of government	Census count (2022)	Listed on this page
County government	1	1
Cities, towns, villages and townships	8	0
School districts (school boards)	1	0
Special districts (elected boards)	168	0

Census Bureau, 2022 Census of Governments: Government Units Listing (census.gov).

About these counts

The Census Bureau counts every independent local government once, in the county it assigns it to: the one it mostly serves or where it's based. A city or district that crosses county lines is counted in only one county, so it may be listed on this page but counted elsewhere, or the other way around. Many special districts, such as housing authorities, have appointed boards, and some places have more than one elected body, so the two columns measure different things. School systems run by a county, city or the state aren't counted as separate governments, though their boards may be listed here; in some states the Bureau counts community or state colleges as school districts. The counts are as of 2022.

Who lives in Jefferson County

579,377people

40.5median ageU.S.: 38.9

$110,656 household incomeU.S.: $80,734

6.7%below the U.S.: 12.5%

52%of adults 25+ with a bachelor's degreeU.S.: 35.7%

$637,600median home valueU.S.: $332,700

3.9%unemployed (of the labor force)U.S.: 5.2%

6.3%born outside the U.S.U.S.: 14.1%

6.5%of adults are veteransU.S.: 6.2%

5.3%U.S.: 8.4%

52.9%of renting households pay of income on rentU.S.: 51.1%

27%of homeowners with a mortgage pay of income on housing costsU.S.: 28.1%

Race and Hispanic origin: Hispanic or Latino 16.1% · White 75.2% · Black 1.1% · Asian 2.9% · Other or more than one race 4.7% (Hispanic or Latino people can be of any race; the other groups are non-Hispanic.)

Census Bureau, 2020–2024 5-year estimates (data.census.gov).

About these figures

The American Community Survey asks about 3.5 million households a year about who lives there, their work, income, schooling and housing. The 5-year estimates pool 2020–2024 answers so that every county and district has enough of them. They're estimates with a (larger for smaller places), and they're different from the once-a-decade census count. "Median" means half are above and half below. Household income is before taxes and includes everyone in the household. The unemployment share here is the survey's five-year average, so it differs from the monthly rate in the BLS jobs report. Race and Hispanic origin are as people describe themselves.

Health insurance means any coverage, private or public (such as Medicaid or Medicare), when people answered; the share is of everyone except people on active military duty and people living in institutions such as prisons and nursing homes. The housing shares are of renting households, and of homeowners with a mortgage, for whom the Census Bureau can compute them (households with no income, or renters who pay no cash rent, are left out). Rent here is gross rent, rent plus utilities; owner costs include the mortgage, property taxes, insurance, utilities and fees.

Jobs in Jefferson County

4.1%September 2026, preliminary. A year earlier: 3.6%. Colorado: 4.4%.

13,591people unemployedSeptember 2026, preliminary.

316,606people employedSeptember 2026, preliminary. Counted where they live, not where they work.

330,197in the September 2026, preliminary.

Yearly average unemployment rate, 2016–2025.

Every month, last two years

Month	Rate	Unemployed	Employed	Labor force
September 2026 (preliminary)	4.1%	13,591	316,606	330,197
August 2026	4.4%	14,304	314,139	328,443
July 2026	3.9%	12,896	319,795	332,691
June 2026	3.7%	12,073	316,100	328,173
May 2026	3.4%	11,250	317,237	328,487
April 2026	3.2%	10,608	317,047	327,655
March 2026	3.5%	11,460	317,248	328,708
February 2026	4.1%	13,591	316,440	330,031
January 2026	4.0%	13,405	319,010	332,415
December 2025	3.4%	11,321	323,559	334,880
November 2025	3.6%	12,296	325,460	337,756
October 2025	not collected (2025 federal shutdown)
September 2025	3.6%	12,336	326,967	339,303
August 2025	3.7%	12,568	325,856	338,424
July 2025	3.8%	13,020	326,143	339,163
June 2025	3.8%	12,860	325,776	338,636
May 2025	3.7%	12,467	323,790	336,257
April 2025	3.7%	12,491	324,625	337,116
March 2025	4.0%	13,376	322,079	335,455
February 2025	4.4%	14,850	321,670	336,520
January 2025	4.3%	14,464	323,066	337,530
December 2024	4.0%	13,604	323,093	336,697
November 2024	4.2%	14,347	324,754	339,101
October 2024	4.1%	14,038	324,856	338,894

Yearly averages

Year	Rate	Unemployed	Employed	Labor force
2025 (11 months)	3.8%	12,914	324,454	337,368
2024	4.0%	13,421	323,416	336,837
2023	3.1%	10,461	326,401	336,862
2022	2.9%	9,579	325,295	334,874
2021	5.2%	17,146	315,638	332,784
2020	6.7%	21,777	304,573	326,350
2019	2.5%	8,180	323,020	331,200
2018	2.8%	9,218	317,860	327,078
2017	2.4%	7,831	312,134	319,965
2016	2.8%	8,872	303,918	312,790

Bureau of Labor Statistics, Local Area Unemployment Statistics, : BLS publishes county figures only that way, so they rise and fall with the seasons; compare a month with the same month a year earlier rather than with the month before. Colorado's figure above is on the same basis; seasonally adjusted, as in BLS's monthly state release, it was 4.1% in September 2026. The latest month is preliminary and is revised the next month, and BLS revises earlier years each spring. People are counted where they live. October 2025 wasn't collected during the 2025 federal government shutdown, so 2025's yearly average covers 11 months.

Crime reported in Jefferson County

396.2 per 100,0002025. Colorado: 421.7.

2,630.2 per 100,0002025. Colorado: 2,143.6.

8murders2025, 1,632 violent crimes in all.

Earlier years

Year	Violent	Rate	Property	Rate
2025	1,632	396.2	10,834	2,630.2
2016	1,457	276.2	16,882	3,200.3

By police agency (7)

Agency	Year	Violent	Property	People served
Jefferson County Sheriff's Office	2025	451	1,788	197,128
Lakewood Police Department	2025	1,055	6,982	157,016
Wheat Ridge Police Department	2025	84	1,237	31,904
Golden Police Department	2025	26	434	20,091
Edgewater Police Department	2025	14	264	4,849
Mountain View Police Department	2024	1	6	513
Lakeside Police Department	2025	2	129	15

Crimes to the county's city and county police agencies (FBI Uniform Crime Reporting, Return A), per 100,000 people they serve. Years with incomplete reporting are left out. Crime in Colorado · the U.S.

Police staffing

2.11 per 1,000 residents2020, 8 agencies serving 417,646 people.

883sworn officers2020, full-time, as of October 31.

453civilian staff2020, full-time.

2020 is the latest year every agency here sent the FBI its staff count.

Agencies counted (8), 2020

Agency	Officers	Civilians	People served
Jefferson County Sheriff's Office	418	301	199,169
Lakewood Police Department	295	113	159,719
Wheat Ridge Police Department	86	20	31,451
Golden Police Department	45	16	20,981
Edgewater Police Department	18	0	5,353
Mountain View Police Department	9	1	540
MORRISON	8	1	425
Lakeside Police Department	4	1	8

Earlier years

Year	Officers	Per 1,000	Civilians	Agencies
2020	883	2.11	453	8
2019	1,013	2.43	393	8
2018	932	2.24	469	8
2017	968	2.35	454	8
2016	952	2.32	485	8

Full-time employees of the county's city police departments and sheriff's office, as each reported them to the FBI (Uniform Crime Reporting, Law Enforcement Employees), per 1,000 people in the areas those agencies serve (the FBI's population figures). A year is shown only when every one of these agencies sent a count; a count under half or over double the agency's own counts in nearby years is treated as not sent. Towns policed under contract by another agency are counted through that agency. State police, campus and other agencies aren't included. Sheriffs' offices often also run the county jail and courthouse security, so their staff counts include those jobs.

Quick answers

Who is the Jefferson County Assessor?: Scot Kersgaard (Democratic) is the Assessor of Jefferson County, Colorado. The seat was on the November 3, 2026 ballot; the count isn't certified yet.
Who is the Jefferson County Clerk and Recorder?: Amanda M. Gonzalez (Democratic) is the Clerk and Recorder of Jefferson County, Colorado. The seat was on the November 3, 2026 ballot; the count isn't certified yet.
Who is the Jefferson County Coroner?: Annette Cannon (Democratic) is the Coroner of Jefferson County, Colorado. The seat was on the November 3, 2026 ballot; the count isn't certified yet.
Who is the Jefferson County Sheriff?: Regina "Reggie" Marinelli (Democratic) is the Sheriff of Jefferson County, Colorado. The seat was on the November 3, 2026 ballot; the count isn't certified yet.
Who is the Jefferson County Surveyor?: Robert J. Hennessy (Republican) is the Surveyor of Jefferson County, Colorado. The seat was on the November 3, 2026 ballot; the count isn't certified yet.
Who is the Jefferson County Treasurer?: Jerry DiTullio (Democratic) is the Treasurer of Jefferson County, Colorado. The seat was on the November 3, 2026 ballot; the count isn't certified yet.
Who are the Jefferson County commissioners?: Rachel Zenzinger (District 1); Andy Kerr (District 2); Lesley Dahlkemper (District 3).
What is the population of Jefferson County?: About 579,377 people, with a median age of 40.5; the median household income is $110,656 and 6.7% live below the poverty line (Census Bureau, American Community Survey 2020–2024 5-year estimates).
What is the unemployment rate in Jefferson County?: 4.1% in September 2026 (preliminary): 13,591 people unemployed in a labor force of 330,197, against 3.6% a year earlier (Bureau of Labor Statistics, Local Area Unemployment Statistics, not seasonally adjusted).
How many local governments are there in Jefferson County?: 178 in the Census Bureau's 2022 Census of Governments: 1 county, 8 municipal, 1 school district and 168 special district governments.

Officeholders as of November 6, 2026, from the Colorado Secretary of State's 2023-2024 Biennial Abstract directory of county officers, with districts and parties from the Secretary of State's certified 2022 and 2024 general election results; officials appointed since it was published may differ; each name links to its source. Officials change between elections (appointments, resignations), and the body's own website is the authority. Party is shown only for offices elected on a partisan ballot.

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