LaSalle County Illinois Genealogy Page

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This county is available for adoption by a volunteer with an interest in Hardin County genealogy and time to dedicate to making this a great county in the tradition of ILGenWeb. If you are interested contact the ILGenWeb State Coordinator to discuss county adoption.


LaSalle County was established in 1831 from parts of Putnam and unorganized Tazewell Counties. LaSalle County was named for the famous French explorer Robert de la Salle. The original LaSalle County covered parts of present-day Kendall, Livingston and Marshall counties. Its current boundaries were established in 1843.    

Welcome to LaSalle County. This home page is dedicated to those who are interested in doing genealogical research in LaSalle County and should be viewed as a tool to help you in this endeavor. Suggestions and comments are not only appreciated and welcome but are asked for. All will be answered as soon as possible.  Below are some aides that it is hoped will be helpful in your research. Please feel free to let me know if you have more that you would like to add via e-mail to Temporary Administrator so they can be included in future editions of this homepage.


        Join our LaSalle County Mailing List        

Go here for information and instructions on subscribing.  

Mailing address for posting messages is:

NOTE: You must be subscribed before you can post a message to the list, or your email will not be received on the mailing list.

To view and search old messages off the LaSalle List -- Go HERE and enter ILLASALL as the name of the list and it will take you to the search page.

The Past & Present of LaSalle Co. 1877


Search our site for your LaSalle County Ancestors Surnames

If you could not find your ancestors in the above search site, try the LaSalle County Surname Helper site, which is alphabetized, and you may find it under a similar spelling. Over 10,000 Surnames indexed in this site so far!


LaSalle County Links


Queries & Surname's 



LaSalle County Communities


         Community Map of  LaSalle County  

         Township Map 

         LaSalle County Churches 

         LaSalle County Cemeteries

         LaSalle County Obituaries 


         LaSalle County Churches 

         LaSalle County 1917 Farmers Directory

         LaSalle County in the Civil War

         LaSalle County Family Homepages  -  If you have an ancestor that lived in LaSalle County and a genealogy web site, please send me your URL and surnames and I will see that it gets posted to this page.


 Useful LaSalle County Addresses

LaSalle County Genealogy Guild 

115 West Glover Ottawa, Illinois 61350 

(815) 433-5261  

Open Monday - Saturday

Peru Public Library 
1409 11th Street 
  Peru, IL 61354  
(815) 223-0229 
 Fax: (815) 223-1559  

Downtown Courthouse 

Madison & Columbus St.

Ottawa, Illinois 61350 

Available Records: 

Probate 1839, Court 1870, Naturalization 1840, School 1900's

Courthouse (New Complex) 

Etna Road

Ottawa, Illinois 61350 

Available Records: 

Marriage 1831, Birth 1877,  Death 1877, Land 1819

Illinois Regional Archives Depository 

Swen Parson Hall  Northern Illinois University  

DeKalb, IL 60115 

Telephone: (815) 753-1779 

Hours: M-F 8:00 a.m. to 4:30 p.m 

IRAD's Holdings for LaSalle County

Reddick Library 

1010 Canal Street  
Ottawa, IL 61350-4998  

Phone: (815)434-0509  
FAX: (815)434-2634


Links to Neighboring Counties

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Bureau County
Putnam County 
Marshall County 
Woodford County 
Livingston County 
Grundy County
Kendall County
Kane County
DeKalb County
Lee County 


Useful Links on the Internet

Bureau of Land Management   

This site has a searchable database of over 2 million pre-1908 Federal land title records, including scanned images of those records.


Every surname imaginable.  If your Surname is not listed, start a forum yourself.

Cyndi's List of Genealogy Sites 

Cyndi's List of Illinois Sites 

ILGenWeb Links & USGenWeb Project Links

ILGenWeb State Page

ILGenWeb Archives

Illinois in the Civil War Project

USGenWeb Page

 USGenWeb Archives State Index 

USGenWeb Census Project

USGenWeb Tombstone Project

World GenWeb


     You are the  visitor to this page since July 6, 1998

 Page last updated June 30, 2014

Copyright 1998 -2014

All materials contained on these pages are furnished for the free use of those engaged in researching their family origins.

Any commercial use, without the consent of the host/author of these pages is prohibited.