Seneca, Illinois Police and Jail Information

Seneca is a village in Grundy LaSalle County, Illinois. According to the United States Census Bureau, the village has a total area of 6.99 square miles (18.11 sq. km). The Village of Seneca had a population of approximately 2,371 in the year 2010.

The mayor of Seneca, Illinois is Jeff Olson. Jeff Olson can be contacted at (815) 357-8771 and by email at

Jeff Olson, Mayor
Seneca Village Mayor’s Office
Village of Seneca
Seneca Village Hall
340 N. Cash St.
Seneca, IL 61360
Phone: (815) 357-8771
Fax: (815) 357-8772
Hours: Monday – Friday, 8 a.m. – 4 p.m.

Village of Seneca Mayor

Seneca, Illinois Jail and Mugshot Information

Violent crime rate in 2018 Seneca: 288.2; U.S. Average: 207.3
Violent crime rate in 2017 Seneca: 154.4; U.S. Average: 215.2

Facts about crime in Seneca, Illinois:

  • The overall crime rate in Seneca is 9% lower than the national average.
  • For every 100,000 people, there are 6.44 daily crimes that occur in Seneca.
  • Seneca is safer than 35% of the cities in the United States.
  • In Seneca you have a 1 in 43 chance of becoming a victim of any crime.
  • The number of total year over year crimes in Seneca has increased by 111%.

Seneca, Illinois Police Station Information

Seneca Police Department

The Seneca Police Department has 14 full-time police officers serving a population of approximately 2,100 people.

Seneca Police Department
340 N Cash St,
Seneca, IL 61360
Phone: (815) 357-1616 or (815) 357-8726
Fax: (815) 357-1424
Hours: Monday – Friday, 8 a.m. – 4 p.m.

Seneca Police

Seneca, Illinois Village or County Jail Information

The Village of Seneca is located in Grundy and LaSalle County. Therefore, we listed the county jail and inmate visitation information of both the counties.

Grundy County Jail Information

The Grundy County Jail has the capacity of holding 65 inmates. The physical location of the jail is:

Grundy County Jail
111 E Illinois Ave.
Morris, IL 60450
Phone: (815) 941-3243

Grundy County Jail Visitations Hours:

Male Inmates:
Wednesday, 7 p.m. – 9 p.m.
Sunday, 1 p.m. – 3 p.m.

Female Inmates:
Wednesday, 9:00 p.m. – 10:00 p.m.
Sunday, 3 p.m. – 4 p.m.

Grundy County Jail Visitations
Grundy County Jail

LaSalle County Jail Information

The physical location of the jail is:

LaSalle County Jail
707 E. Etna Rd.
Ottawa, IL 61350
Phone: (815) 434-8383
Fax: (815) 434-0554

LaSalle County Jail Visitations Hours:

Video Visitation:
Saturday – Wednesday, 9 a.m. – 8 p.m.

LaSalle County Jail

Police Records Request in Seneca, Illinois

We have not found police records information on the Seneca Police Department website. Instead, police records can be obtained from the Village Clerk’s Office during normal business hours. Requests may be made completing the fillable/printable FOIA Request form which can be mailed, faxed or delivered in–person.

Seneca FOIA Form

The location and reports request contact information is as follows:

Jennifer Peddicord, Village Clerk
Village of Seneca
Seneca Village Hall
340 N. Cash Street
Seneca, IL 61360
Phone: (815) 357-8771
Fax: (815) 357-8772
Hours: Monday – Friday, 8 a.m. – 4 p.m.

Village of Seneca FOIA Request
Seneca Village Clerk

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