How many Jeremiah Sullivan census records do you have?

We have 3132 US Census records for Jeremiah Sullivan, from 1900 to 1950, across 45 states, DC, and 1 territory.

What's in a Jeremiah Sullivan census record?

You'll see Jeremiah's age, birthplace, occupation, and relationship to the head of household — plus everyone else who lived in the same home. For 1940 and 1950 records, you can also view the original handwritten census page.

How do I use census records for family research?

Census records are a snapshot of a family every 10 years. You can follow Jeremiah Sullivan's household over time — see when children appear, when people move states, and who's living together. YourRoots connects census data with Tree Matching and AI tools so you can build out your tree faster.

Are Jeremiah Sullivan census records free?

Yes. All Jeremiah Sullivan census records on YourRoots are free to search and view — no subscription required. We built our own index from the original federal census images.

Which census years and states cover Jeremiah Sullivan?

We have Jeremiah Sullivan records from the 1900 through 1950 US Federal Census, across 45 states, DC, and 1 territory. Use the year and state filters to narrow your results.

How do I find Jeremiah Sullivan in the census?

Start by narrowing the year and state. If you know an approximate birth year, use the age column to match — census age minus the census year gives you a birth year estimate. Household members, birthplace, and occupation help confirm you have the right person.

What is the Model Tree for Jeremiah Sullivan?

The Model Tree is YourRoots' unique feature that links a person across multiple census decades and reconstructs their likely family — parents, siblings, spouse, and children — based on household patterns. It turns isolated records into a connected family network.

Where does the census data come from?

All records originate from the US Federal Census microfilm digitized by NARA (National Archives and Records Administration). YourRoots re-indexed the original page images using modern AI, catching names and details that older transcriptions missed.

Jeremiah Sullivan — US Census Records & Model Tree

We found 3132 free census records for Jeremiah Sullivan across 6 census years (1900–1950), in 45 states, DC, and 1 territory and 296 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

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Showing of 3132 records for Jeremiah Sullivan US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	Jeremiah J. Sullivan	40	Suffolk-County, Massachusetts	Massachusetts	Electrician	Head
1920	Jeremiah P Sullivan		Newport, Rhode Island	Rhode Island	Machine Operator	Son
1920	Jeremiah Sullivan		Wayne, Michigan	Michigan	Mechanic	Son
1940	Jeremiah Sullivan	42	Worcester-County, Massachusetts	Massachusetts	Fireman	Head
1920	Jeremiah P. Sullivan		Newport, Rhode Island	Rhode Island	Machinist	Son
1930	Jeremiah Sullivan		Kings, New York	New York	Clerk	Son
1930	Jeremiah J. Sullivan		Middlesex, Massachusetts	Massachusetts	Janitor	Son
1940	Jeremiah Sullivan	28	Cook-County, Illinois	Illinois	Policeman	Son
1920	Jeremiah Sullivan		Suffolk, Massachusetts	Ireland	Foreman	Head
1940	Jeremiah J Sullivan	62	Cook-County, Illinois	New York	Machinist	Head
1930	Jeremiah Sullivan		Providence, Rhode Island	Rhode Island	Engineer	Head
1930	Jeremiah F Sullivan		Middlesex, Massachusetts	Massachusetts	Contractor	Head
1940	Jeremiah J. Sullivan	51	Suffolk-County, Massachusetts	Mass.	Superintendent	Head
1930	Jeremiah Sullivan		San Francisco, California	California	Salesman	Head
1930	Jeremiah L. Sullivan		Middlesex, Massachusetts	Massachusetts	Plumber	Head
1930	Jeremiah Sullivan		New York, New York	Ireland	Laborer	Head
1920	Jeremiah Sullivan		Dekalb, Illinois	Illinois	Farmer	Head
1930	Jeremiah Sullivan		New York, New York	Ireland	Clerk	Head
1930	Jeremiah Sullivan		Kings, New York	Ireland	Watchman	Head
1930	Jeremiah Sullivan		Suffolk, Massachusetts	Ireland	None	Head
1930	Jeremiah Sullivan		Philadelphia, Pennsylvania	England	Sexton	Head
1920	Jeremiah A. Sullivan		Bristol, Massachusetts	Rhode Island	Superintendent	Head
1930	Jeremiah J. Sullivan		Worcester, Massachusetts	Massachusetts	Fireman (Captain)	Head
1940	Jeremiah Sullivan	45	Sangamon-County, Illinois	Illinois	Farmer	Head
1920	Jeremiah Sullivan		Suffolk, Massachusetts	Ireland	Inspector & Weigher	Head
1920	Jeremiah M. Sullivan		Suffolk, Massachusetts	Massachusetts	Clerk	Son
1920	Jeremiah Sullivan		Middlesex, Massachusetts	Massachusetts	Agent	Son
1940	Jeremiah Sullivan	53	Suffolk-County, Massachusetts	Irish Free State	Laborer	Head
1910	Jeremiah Sullivan		Kings, New York	New York	Printer	Son
1920	Jeremiah Sullivan		Hampshire, Massachusetts	Massachusetts	—	Son

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About Jeremiah Sullivan US Census Records & Model Tree

We've indexed 3132 free, proprietary US Census records for Jeremiah Sullivan across 1900–1950, covering 45 states, DC, and 1 territory: Alabama, Alaska, Arizona, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New York, North Carolina, North Dakota, Ohio, Oregon, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Vermont, Virginia, Washington, Wisconsin, Wyoming.

Each record includes our Model Tree — a longitudinal reconstruction that links the same person across census decades using machine learning (XGBoost record linkage). Every link carries a confidence score: Verified (≥0.99), Confirmed (≥0.95), or Linked (lower confidence). This tells you not just what the census says, but how reliably we've connected records across time.

Every record also shows the full household — who Jeremiah lived with, their ages, birthplaces, and occupations. For 1940 and 1950 records, you can view the original handwritten census page from the National Archives.

How we build the Model Tree. YourRoots independently indexes US Census records from NARA microfilm and links persons across decades using XGBoost-based record linkage. Each link's confidence is a per-pair match score from the model. Household corroboration (co-residents appearing on the same census pages in multiple years) strengthens the signal. The Model Tree is not a family tree submitted by users — it's reconstructed from the census data itself.

Last updated: July 30, 2026

Frequently Asked Questions

: We have 3132 US Census records for Jeremiah Sullivan, from 1900 to 1950, across 45 states, DC, and 1 territory.
: You'll see Jeremiah's age, birthplace, occupation, and relationship to the head of household — plus everyone else who lived in the same home. For 1940 and 1950 records, you can also view the original handwritten census page.
: Census records are a snapshot of a family every 10 years. You can follow Jeremiah Sullivan's household over time — see when children appear, when people move states, and who's living together. YourRoots connects census data with Tree Matching and AI tools so you can build out your tree faster.
: Yes. All Jeremiah Sullivan census records on YourRoots are free to search and view — no subscription required. We built our own index from the original federal census images.
: We have Jeremiah Sullivan records from the 1900 through 1950 US Federal Census, across 45 states, DC, and 1 territory. Use the year and state filters above to narrow your results.
: Start by narrowing the year and state. If you know an approximate birth year, use the age column to match — census age minus the census year gives you a birth year estimate. Household members, birthplace, and occupation help confirm you have the right person.
: The Model Tree is YourRoots' unique feature that links a person across multiple census decades and reconstructs their likely family — parents, siblings, spouse, and children — based on household patterns. It turns isolated records into a connected family network.
: All records originate from the US Federal Census microfilm digitized by NARA (National Archives and Records Administration). YourRoots re-indexed the original page images using modern AI, catching names and details that older transcriptions missed.

Other Sullivan US Census Records

Agnes Sullivan Alice Sullivan Anna Sullivan Annie Sullivan Arthur Sullivan Catherine Sullivan Charles Sullivan Cornelius Sullivan Daniel Sullivan Dennis Sullivan Dorothy Sullivan Edward Sullivan Elizabeth Sullivan Ellen Sullivan Eugene Sullivan Florence Sullivan Francis Sullivan Frank Sullivan George Sullivan Helen Sullivan James Sullivan John Sullivan Joseph Sullivan Julia Sullivan Katherine Sullivan Margaret Sullivan Mary Sullivan Michael Sullivan Nellie Sullivan Patrick Sullivan Richard Sullivan Robert Sullivan Ruth Sullivan Sarah Sullivan Thomas Sullivan Timothy Sullivan William Sullivan

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