Researching ancestors from Johnson County, Kansas? Here's where the records are — the free path first, then how to get the whole family history traced and written.
Johnson County's seat is Olathe. Look up your surname among the deceased residents of Kansas in our public-record database.
Search Kansas records →Where Johnson County records are kept
Original Johnson County vital, probate, and land records are held at the county courthouse in Olathe — the county recorder or clerk's office. Statewide death registration in Kansas began around July 1911 (earlier vital records are sparse), so for earlier Johnson County deaths you'll rely on the county courthouse, church registers, and cemetery transcriptions. The Kansas Historical Society in Topeka holds the broader historical and microfilmed county records.
The free records for Johnson County
- Census — every federal census through 1950 is free and places your family in Johnson County by household every ten years.
- Death records — search our Kansas database and the state death index for the death year and place.
- Obituaries — the Library of Congress's Chronicling America has free Kansas newspapers, including Olathe-area papers.
- Cemeteries — Johnson County cemetery and tombstone transcriptions, many public domain, fill gaps where a certificate doesn't exist.
We trace both sides back to the documented wall and deliver a written book + interactive family site — flat rate, no DNA test.
See how it works →Frequently asked questions
How do I find genealogy records in Johnson County, Kansas?
Start with the free federal census (public through 1950) and our free Kansas database, then check the county courthouse in Olathe for vital, probate, and land records, plus obituaries and cemetery transcriptions.
Where is the Johnson County, Kansas courthouse?
The Johnson County seat is Olathe, where the county recorder or clerk holds original vital, probate, and land records.