Humboldt County Jail Inmate Search

Last updated by Elizabeth Boyle

Search for an Inmate or Active Arrest Warrant in Humboldt County

Checking on Someone at the Humboldt County Jail

  1. Sumner Avenue: 515-332-2471 is the one county number for the jail.
  2. IowaVINE: search VINELink or call 888-742-8463 for custody alerts.
  3. Charges: pick Humboldt County on Iowa Courts Online.

Webster or Pocahontas prisoners boarded in Humboldt are still that county's cases. Sentenced to prison? Follow a Humboldt County inmate in the Iowa corrections lookup.

Humboldt County Jail Inmate Services Information

Phone: 515-332-2471

Physical Address:
430 Sumner Ave
Humboldt, IA 50548

Mailing Address (personal mail):
Humboldt County Jail
430 Sumner Ave.
Humboldt, IA 50548

Mailing Address (legal mail or subscriptions):
Humboldt County Jail
430 Sumner Ave.
Humboldt, IA 50548

Every year Humboldt County law enforcement agencies arrest and detain 880 offenders, and maintain an average of 44 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 Humboldt County and state prisons throughout the country. This information is compiled from local police and the Humboldt County Sheriff's Department, as well as the state of Iowa and the United States Department of Justice and Census Bureau.

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

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

STATE OF Iowa COUNTY JAILS

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

Iowa 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

Humboldt County Inmate Race & Ethnicity - 10/12/2026

Race Inmates % Total
White 28 90.32%
Black 1 3.23%
Hispanic or Latino 1 3.23%
American Indian/Native Alaskan 1 3.23%
Asian 0 0.00%
Pacific Islander/Native Hawaiian 0 0.00%
Other 0 0.00%
Total 31 100.0%
Demographic, Crime and Inmate data is compiled from public reports provided by the Humboldt County Sheriff’s Department, Iowa Corrections, United States Department of Justice, Federal Bureau of Investigation and the United States Census Bureau.

Humboldt County Inmate Criminal Charges - 10/12/2026

(many inmates have multiple charges)

Charge Inmates % Total
Felony (3rd Degree) 7 22.58%
Felony (2rd Degree) 7 22.58%
Felony (1st Degree) 1 3.23%
State Jail Felony 2 6.45%
Felony (Uncategorized) 7 22.58%
Misdemeanor (Class A) 7 22.58%
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 Humboldt County Sheriff’s Department, Iowa Corrections, United States Department of Justice, Federal Bureau of Investigation and the United States Census Bureau.

Humboldt County Inmate Sex - 10/12/2026

Sex Inmates % Total
Male 26 83.87%
Female 5 16.13%
Total 31 100.0%
Demographic, Crime and Inmate data is compiled from public reports provided by the Humboldt County Sheriff’s Department, Iowa Corrections, United States Department of Justice, Federal Bureau of Investigation and the United States Census Bureau.

Humboldt County Inmate Age - 10/12/2026

Age Inmates % Total
Under 18 1 3.23%
18-20 2 6.45%
21-24 4 12.90%
25-30 7 22.58%
31-35 5 16.13%
36-40 4 12.90%
41-45 3 9.68%
46-50 2 6.45%
51-55 1 3.23%
56-60 1 3.23%
61-65 1 3.23%
66-75 0 0.00%
76-85 0 0.00%
Total 31 100.0%
Demographic, Crime and Inmate data is compiled from public reports provided by the Humboldt County Sheriff’s Department, Iowa 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 Humboldt County Sheriff’s Department, Iowa Corrections, United States Department of Justice, Federal Bureau of Investigation and the United States Census Bureau.

The Humboldt County Jail serves the following cities and towns of Humboldt County: Dakota City and Humboldt.