How to Search US Census Records for Free (by Name or by Address)

The federal census is the single most useful record for finding Americans of the past. Every ten years since 1790, an enumerator walked the streets and back roads and wrote down who lived where. From 1850 onward every free person is named; from 1880 you learn how each person was related to the head of the household; and in cities the later censuses record the street and house number, which makes the census as useful for house and apartment history as it is for genealogy. You do not need a paid subscription to use any of it. This guide shows you where to search free, how to find a household when you know only an address, what each census asked, and how to work around the records that are missing or still sealed.

1. The 72-Year Rule: Which Censuses You Can See

Census responses are confidential for 72 years. The rule was long-standing practice and was written into law by Public Law 95-416 on October 5, 1978. When the 72 years are up, the Census Bureau's records pass to the National Archives (NARA), which releases them to the public. The 1940 census opened on April 2, 2012, and the 1950 census on April 1, 2022. The Census Bureau says the 1960 census will be released in April 2032. Until then, the most recent census anyone can browse is 1950.

That gives you fifteen usable censuses: 1790 through 1950, minus almost all of 1890 (see section 6). Some early schedules are also missing for particular states, lost long before the 1921 fire, so if a county seems blank, check whether its schedule survives before assuming the family was not there.

2. What Each Census Asked

Knowing what a given year recorded tells you which census to search for which question. The highlights below are taken from the questionnaires published by the Census Bureau and NARA.

• 1790–1840: Only the head of each household is named. Everyone else is a tick mark in an age-and-sex column, with free people of color and enslaved people counted separately. The 1840 census also names Revolutionary War and other military pensioners, with their ages.
• 1850: The first census to name every free person in the household, with age, sex, color, occupation, birthplace, and value of real estate.
• 1860 and 1870: Similar to 1850, adding the value of personal property.
• 1880: Adds each person's relationship to the head of the family and the birthplaces of each person's father and mother. In cities, the schedule asks for the street name and house number.
• 1890: Mostly destroyed after a fire on January 10, 1921.
• 1900: Asks date of birth (month and year), number of years married, how many children a mother had borne and how many were living, year of immigration, years in the US, and whether the home was owned or rented.
• 1910: Repeats most 1900 questions and adds whether the person was a survivor of the Union or Confederate Army or Navy, plus the language spoken by people who did not speak English.
• 1920: Adds the year of naturalization and the mother tongue of each person and of both parents.
• 1930: Records the value of the home or the monthly rent, whether the household owned a radio set, and veteran status with the war served in.
• 1940: Asks where each person lived on April 1, 1935, and wage or salary income for 1939. About 5 percent of people (those on lines 14 and 29) answered supplemental questions, including parents' birthplaces, mother tongue, veteran status, and Social Security. An "X" in a circle marks the person who gave the information.
• 1950: Six people per sheet fall on highlighted "sample" lines and answered extra questions: residence a year earlier, parents' birthplaces, schooling, weeks worked, and 1949 income. One sample person per sheet also answered questions on marital history and, for women, children ever born.

3. Where to Search Census Records for Free

National Archives 1950 census site. NARA's 1950census.archives.gov lets you search by name and location, or browse by state, county or city, and enumeration district. Its name index was created by machine reading of handwriting, so it contains errors; you can submit corrections through the site's transcription tool. Search results link to the enumeration district maps.

The 1940 census at NARA. The old 1940census.archives.gov address now forwards to NARA's 1940 census FAQ. The images are free to search, view, and download in the National Archives Catalog, including every image for a county or enumeration district. NARA itself has no name index for 1940; FamilySearch and Ancestry both indexed it.

FamilySearch. FamilySearch.org, run by The Church of Jesus Christ of Latter-day Saints, is the best free place to search every census by name. It requires a free account. Its indexes link to the page images for most years, and you can filter by birth year, birthplace, residence, and relatives' names. Our step-by-step guide to doing family history research for free shows how to build from a census hit to the rest of a family's records.

MyHeritage. MyHeritage published a free 1950 census index with images, searchable without a subscription. Its other census collections generally need a paid plan.

Ancestry Library Edition. Ancestry's indexes to every census are free to use inside most public libraries through Ancestry Library Edition, which works only on library computers or the library's network. Ask at the reference desk.

Internet Archive. The United States Census collection at the Internet Archive holds more than 24,000 microfilm rolls of population schedules from 1790 to 1930, scanned from the microfilm at the Allen County Public Library in Fort Wayne, Indiana. It has no name index, but it is a free backup for images, and the reels are labeled by state and county so you can browse straight to a place.

4. How to Search the Census by Address

If you are researching a house or apartment, you probably know the address but not the names. The census is arranged by geography, not alphabet, so you can go straight to the right pages once you know the enumeration district (ED), the area one enumerator covered. Here is the workflow that works for 1880 through 1950:

1. Confirm the historical address. Streets were renamed and renumbered, especially before 1930. Look up your building in a city directory from close to the census year to confirm its number then, and note the nearest cross streets.
2. Find the ED. The Unified Census ED Finder by Stephen P. Morse and Joel D. Weintraub covers 1870–1950 (except 1890). Choose the year, state, county, and city; for listed cities, enter your street and cross streets and it returns the possible ED numbers. The same site has a Large-City ED Finder, a Changed Street Names tool, and transcribed ED descriptions.
3. Check the ED map. For 1940 and 1950, NARA's enumeration district maps show the boundaries, usually drawn in red, orange, or yellow, with ED numbers in pencil. A 1950 ED number has two parts, such as 48-69; the first is normally the county.
4. Browse the pages. Open that ED in the 1950 site, the National Archives Catalog, FamilySearch, or the Internet Archive and read the street names written down the left margin. Enumerators walked block by block, so your street may appear in several stretches.
5. Read the neighbors. Once you find the house, read the whole page and the ones before and after it. The households around yours are the neighbors, and in a multi-unit building they are the other tenants.

Censuses before 1880 rarely give house numbers, even in cities. For those years, find the family by name first (from a directory or deed), then use their neighbors to locate the property. Our guides to finding who lived in your house before you and finding past tenants of an apartment show how to combine the census with deeds, directories, and newspapers.

5. Reading the Columns and Abbreviations

Each census has its own column headings, so download a blank form for your year before you start. Morse's site has blank 1950 forms and NARA publishes the questions for each year. A few entries confuse almost everyone:

• Dwelling and family numbers count in order of the enumerator's visit, not house numbers. Two families with one dwelling number shared a building.
• Relationship entries use abbreviations such as "Hd" (head), "W" (wife), "Dau," "S" (son), "Bdr" (boarder), and "Svt" (servant).
• Ditto marks and the abbreviation "do" (ditto) repeat the entry above, including surnames.
• Codes written in a different hand, often in the occupation and birthplace columns of 1910–1950, were added by Census Bureau clerks for tabulation. They are not part of the answer.
• Ownership: "O" or "R" means owned or rented, and "F" or "M" means owned free or mortgaged.

6. The 1890 Census and Its Substitutes

Most of the 1890 census was destroyed by a fire in the Commerce Department building in Washington on January 10, 1921. According to NARA's 1890 census page, fragments covering a little over 6,160 people survive, from scattered places in ten states and the District of Columbia. Two other 1890 records survived:

• The special schedule of Union veterans and their widows lists names, units, dates of service, post office addresses, and disabilities. It is arranged by state, county, and locality, Kentucky is only partly preserved, and some Confederate veterans appear anyway. It doubles as an address list of veterans' households.
• The 1890 Oklahoma territorial census survives separately.

For the twenty-year gap between 1880 and 1900, fill in with state censuses (next section), city directories, county tax lists, voter registers, church records, and newspapers. City directories are the best year-by-year substitute in towns large enough to have one.

7. State Censuses

Many states took their own censuses between the federal years, often in years ending in 5. They are free at FamilySearch for many states and are held at the state archives or historical society. Some examples:

• New York: 1825, 1835, 1845, 1855, 1865, 1875, 1892, 1905, 1915, and 1925, with gaps by county in the earlier years. The 1892 census asked only seven questions. The New York State Library lists the questions asked in each year.
• Kansas: 1865, 1875, 1885, 1895, 1905, 1915, and 1925, on microfilm at the Kansas Historical Society.
• Iowa: 1856, 1885, 1895, 1905, 1915, and 1925, plus earlier special censuses; coverage varies by county in some years.
• Minnesota: a territorial census in 1857, then state censuses in 1865, 1875, 1885, 1895, and 1905, according to the Minnesota Historical Society.
• Wisconsin: territorial and state censuses from 1836 through 1905, held mainly at the Wisconsin Historical Society. Only the 1905 census names every member of the household.
• Massachusetts: the state took censuses until 1947, but only the 1855 and 1865 schedules survive, at the Massachusetts Archives.

8. Non-Population Schedules

Alongside the population count, enumerators filled in separate schedules that are often overlooked. NARA's nonpopulation census page lists what survives and where:

• Mortality schedules (1850, 1860, 1870, 1880) list people who died in the twelve months before the census, with age, sex, birthplace, and details such as the cause of death. They are among the few death records for many places before statewide registration.
• Agriculture schedules (1850–1880) give each farm's acreage, value, livestock, and crops, which helps you place a family on the land.
• Manufacturing schedules (1820, 1850–1880) describe mills, shops, and factories by owner name.
• Social statistics (1850–1870) cover churches, schools, libraries, and wages by town. The 1880 Defective, Dependent, and Delinquent Classes schedules describe people in institutions and some households.
• Slave schedules (1850 and 1860) name the slaveholder and list each enslaved person by age, sex, and color. The form had no column for the enslaved person's own name, so researchers usually work from the slaveholder's estate, tax, and court records to identify individuals.

Many non-population schedules did not go to NARA and are held by state archives or libraries, so check both.

9. Why You Cannot Find Someone, and How to Fix It

Most failed census searches come from indexing, not from the family being missed. Census takers spelled names the way they heard them, and modern indexers then read that handwriting, sometimes badly. Try these strategies:

• Search without the surname. Enter a first name, approximate birth year, and county. A household with "Wm" and "Eliz" of the right ages in the right town is often the family under a mangled surname.
• Use wildcards where the site allows them. Most genealogy search forms let you replace letters with a wildcard character, so a search such as "Sch*dt" can catch Schmidt, Schmitt, and Schmiedt. Check each site's search help for its rules.
• Think about Soundex. NARA's Soundex system codes a surname by sound: the first letter plus three digits, so Smith and Smyth share S-530. The Bureau made Soundex card indexes for 1880 (households with children 10 or younger only), 1900 and 1920 (all states), and some states in 1910 and 1930.
• Loosen ages. Ages drift by several years from one census to the next. Search a range of plus or minus five years.
• Try another index. FamilySearch, Ancestry, and MyHeritage each made their own transcriptions. A name misread on one site is often correct on another.
• Browse. If you know where the family lived, go page by page through the ED. It takes an hour and it always works if they were enumerated.

10. How to Cite a Census Page

Record enough detail that you, or a historical society volunteer, can find the page again. A good citation names the year, the place, the enumeration district, the sheet or page number, the line or dwelling number, the person, and where you viewed it. For example:

1940 U.S. census, Cook County, Illinois, Chicago, enumeration district 103-1234, sheet 5A, line 12, household of John Doe; image, National Archives Catalog (accessed November 6, 2026).

Use the sheet number written by the enumerator, not the image number of the website, because image numbers differ between sites.

Privacy, the Age Search Service, and the 1960–2020 Censuses

Censuses from 1960 through 2020 are still confidential. The only way to see your own entry, or a deceased relative's as a legal heir, has been the Census Bureau's Age Search Service, which searched the protected records and issued an official transcript for a fee using application form BC-600. People used it mainly as proof of age for passports and benefits. Effective March 4, 2026, the Census Bureau placed the Age Search Service on pause and stopped processing new requests. Check census.gov before you apply.

For everyone else in recent decades, use the sources that fill the post-1950 gap: city directories and reverse directories, phone books, voter rolls, obituaries, and newspapers.

Tips for Census Research

• Search every census, not just one. Each year adds a fact the others lack, and the changes from one year to the next (a new child, a boarder, a move) are the story.
• Save the image, not just the index. Indexes leave out columns. Download the full page and keep it with your citation.
• Read a few pages on either side. Relatives often lived next door, and in-laws and married daughters turn up a few households away.
• Ask locally. County historical societies often hold printed census indexes, local state census copies, and volunteers who know the street names. Find yours in our directory of historical societies by state.

Frequently Asked Questions

Can I search census records for free?

Yes. FamilySearch indexes every surviving federal census from 1790 to 1950 free with a free account. The National Archives hosts the 1950 census free at 1950census.archives.gov and the 1940 census images in the National Archives Catalog, and MyHeritage offers a free 1950 index. Ancestry Library Edition is free inside most public libraries.

How do I find census records by address?

Use Steve Morse's Unified Census ED Finder to convert the street address into an enumeration district for the census year you want, then browse that district's pages on the 1950 census site, the National Archives Catalog, FamilySearch, or the Internet Archive. Confirm the historical house number in a city directory first, because many streets were renumbered.

When will the 1960 census be released?

Census records stay confidential for 72 years under Public Law 95-416. The Census Bureau says the 1960 census will be released in April 2032. Until then, 1950 is the most recent census open to the public.

Why is the 1890 census missing?

Most of the 1890 census was destroyed after a fire in the Commerce Department building in Washington on January 10, 1921. Fragments covering a little over 6,160 people survive, along with the special schedule of Union veterans and widows. State censuses, city directories, and tax lists fill the gap.

Why can't I find my ancestor in the census?

The most common reason is a misspelled or misread name in the index. Search by first name, birth year, and place without the surname, use wildcards, widen the age range, try a second website's index, or browse the enumeration district page by page.