Jefferson County Jail Inmate Search

Search for an Inmate or Active Arrest Warrant in Jefferson County

Jefferson County Jail Inmate Services Information

Phone: 920-674-7310

Physical Address:
411 South Center Ave.
Jefferson, WI 53549-1703

Mailing Address (personal mail):
Inmate's Full Name & Inmate ID#
Jefferson County Jail
411 S. Center Ave.
Jefferson WI 53549-1703

Mailing Address (legal mail or subscriptions):
Inmate's Full Name & Inmate ID#
Jefferson County Jail
411 S. Center Ave.
Jefferson WI 53549-1703

Every year Jefferson County law enforcement agencies arrest and detain 4,580 offenders, and maintain an average of 229 inmates (county-wide) in their custody on any given day.

The weekly turnover rate of inmates is approximately 55%, meaning that every week more than half of these inmates are released and then replaced with new offenders being booked into jail.

The charts below break down the men, women, races, ethnicities and the types of crimes that people are arrested and incarcerated for in both Jefferson County and state prisons throughout the country. This information is compiled from local police and the Jefferson County Sheriff's Department, as well as the state of Wisconsin and the United States Department of Justice and Census Bureau.

If you are looking for a prisoner in Wisconsin or Federal custody, click on the appropriate institution below.

If you are searching for an inmate being held in another county in Wisconsin, click below.

STATE OF Wisconsin COUNTY JAILS

If you are searching for a prisoner in a Wisconsin State Prison click below.

Wisconsin Prison Inmate Search

If you are searching for a United States Federal Bureau of Prisons Inmate click below.

Federal Bureau of Prisons Inmate Search

For ICE Detainees (Immigration) being held at a detention facility in the United States, click below.

ICE Detainee Search

Jefferson County Inmate Race & Ethnicity - 11/1/2026

Race Inmates % Total
White 125 69.83%
Black 5 2.79%
Hispanic or Latino 29 16.20%
American Indian/Native Alaskan 5 2.79%
Asian 6 3.35%
Pacific Islander/Native Hawaiian 5 2.79%
Other 4 2.23%
Total 179 100.0%
Demographic, Crime and Inmate data is compiled from public reports provided by the Jefferson County Sheriff’s Department, Wisconsin Corrections, United States Department of Justice, Federal Bureau of Investigation and the United States Census Bureau.

Jefferson County Inmate Criminal Charges - 11/1/2026

(many inmates have multiple charges)

Charge Inmates % Total
Felony (3rd Degree) 40 22.35%
Felony (2rd Degree) 40 22.35%
Felony (1st Degree) 8 4.47%
State Jail Felony 16 8.94%
Felony (Uncategorized) 43 24.02%
Misdemeanor (Class A) 32 17.88%
Misdemeanor (Class C) 0 0.00%
Holds 0 0.00%
Uncategorized 0 0.00%
Demographic, Crime and Inmate data is compiled from public reports provided by the Jefferson County Sheriff’s Department, Wisconsin Corrections, United States Department of Justice, Federal Bureau of Investigation and the United States Census Bureau.

Jefferson County Inmate Sex - 11/1/2026

Sex Inmates % Total
Male 162 90.50%
Female 17 9.50%
Total 179 100.0%
Demographic, Crime and Inmate data is compiled from public reports provided by the Jefferson County Sheriff’s Department, Wisconsin Corrections, United States Department of Justice, Federal Bureau of Investigation and the United States Census Bureau.

Jefferson County Inmate Age - 11/1/2026

Age Inmates % Total
Under 18 2 1.12%
18-20 10 5.59%
21-24 18 10.06%
25-30 37 20.67%
31-35 30 16.76%
36-40 28 15.64%
41-45 20 11.17%
46-50 11 6.15%
51-55 10 5.59%
56-60 7 3.91%
61-65 3 1.68%
66-75 2 1.12%
76-85 1 0.56%
Total 179 100.0%
Demographic, Crime and Inmate data is compiled from public reports provided by the Jefferson County Sheriff’s Department, Wisconsin Corrections, United States Department of Justice, Federal Bureau of Investigation and the United States Census Bureau.
Demographic, Crime and Inmate data is compiled from public reports provided by the Jefferson County Sheriff’s Department, Wisconsin Corrections, United States Department of Justice, Federal Bureau of Investigation and the United States Census Bureau.

The Jefferson County Jail serves the following cities and towns of Jefferson County: Aztalan, Cambridge, Cold Spring, Concord, Fort Atkinson, Helenville, Jefferson, Johnson Creek, Lac La Belle, Lake Mills, Palmyra, Sullivan, Waterloo, Watertown and Whitewater.