A

Administration & Planning Division - 815.774.3321
Animal Control - 815.462.5633
Auditor, Duffy Blackburn (D) - 815.740.4609

B

Birth Certificates - 815.740.4615
Board of Review  - 815.740.4670
Building Division - 815) 727.8634

C

Circuit Clerk, Andrea Chasteen (D) - 815.727.8592
Circuit Court, Chief Judge Daniel L.Kennedy - 815.727.8540
Community Development - 815.774.7890
Coroner, Laurie Summers (D) - 815.727.8455
County Board - 815.740.4602
County Clerk, Chuck Pelkie​ - 815.740.4615
County Clerk ,Crete Township Branch - 708.672.8279
County Clerk, DuPage Township Branch - 630.759.1317
County Executive, Jennifer Bertino-Tarrant (D) - 815.740.4601

D

Development Review Division - 815.727.8850
Division of Transportation - 815.727.8476

E

Elections - 815.740.4616
Emergency Management Agency - 815.740.8351

F

Forest Preserve District    22606 S. Cherry Hill Rd., Joliet    (815) 727-8700

G

General Information, County Office Building  - 815.722.5515
General Information, Courthouse - 815. 727.8400
Geographic Information Systems - 815.774.6343
Grant Administration - 815.727.5686

H

Health Department  - 815.727.8480
Historic Preservation Commission - 815.774.7902
Human Resources Department - 815.774.7489

I

Information, Communication & Technology Department - 815.740.8361

J

Jail (Adult Detention Facility) - 815.740.1250
Jury Commission - 815.727.8614
Juvenile Circuit Clerk - 815.730.7155
Juvenile Probation - 815.730.7120
Juvenile Public Defender  - 815.730.7090
Juvenile States Attorney - 815.730.7075

L

Land Use Department    58 East Clinton St., Joliet    (815) 774-3321
Law Library    14 W. Jefferson St., Joliet    (815) 727-8619

M

Marriage Licenses - (815) 740-4626

N

New Business Registration - 815.740.4624

P

Planning and Zoning Commission - 815.727.8850
Probation - Adult - 815.727.8446
Public Building Commission - 815. 727.8901
Public Defender - 815.727.8666
Purchasing - 815.740.4605

R

Recorder of Deeds, Karen A. Stukel (D) - 815) 740-4637
Regional Supt. of Schools, Dr. Lisa Caparelli-Ruff (R) - 815.740.8360
Resource Recovery and Energy Division - 815.727.8834
River Valley Juvenile Detention Center - 815.730.7070

S

Sheriff Mike Kelley (D) -  815.727.8895
Sheriff's Merit Commission  - 815.727.5680
State's Attorney James W. Glasgow (D) - 815.727.8453
Sunny Hill Nursing Home - 815.727.8710
Supervisor of Assessments  - 815.740.4648

T

Treasurer, Tim Brophy (D) - 815.740.4675
Tuberculosis Clinic - 815.740.4420

V

Veterans Assistance Commission - 815.740.8389
Voter Registration - 815.740.4620

W

Will Co. Stormwater Commission - 815.740.8140
Workforce Investment Board - 815.727.5670
Workforce Services Division - 815.727.4444