How to Read and Download the 1820 U.S. Census Form

The 1820 census form is the household schedule used for the fourth U.S. decennial enumeration, and it records each household as a single line: the head of household by name, then columns of tick marks counting everyone else by age bracket, sex, race, legal status, whether they were foreigners not naturalized, and which of three broad economic sectors they worked in.¹ The count began on the first Monday of August 1820 under the Census Act of March 14, 1820.² Reading one today is mostly a matter of knowing what each column stands for, because the federal government did not print blank forms and most assistants hand-ruled their own columns without headers.

What the Columns Record

After the head of household’s name, the schedule breaks the household into demographic groups. Free white males were tallied across six age columns and free white females across five.³

The male brackets are: under 10; 10 and under 16; 16 and under 18; 16 and under 26 (including heads of families); 26 and under 45 (including heads of families); and 45 and upwards (including heads of families). The female brackets are the same except there is no separate 16-to-18 column: under 10; 10 and under 16; 16 and under 26; 26 and under 45; and 45 and upwards.³

The 16-to-18 male column is the single biggest trap on the form. It overlaps the 16-to-26 column, so a seventeen-year-old male is counted in both. The marshals’ instructions warned that the 16-to-18 figures “must not be added to the general aggregates” because they already appear in the 16-to-26 total; the extra column existed to gauge young men of potential military age.⁴ If you sum a household’s males straight across, you will overcount.

Enslaved persons and free colored persons each get four age brackets, split by sex: under 14; 14 and under 26; 26 and under 45; and 45 and upwards.² The form also carries a catch-all column labeled “All other persons except Indians not taxed.”³

A separate column, new in 1820, counts foreigners in the household who had not become naturalized citizens. It records a count only. No birthplace, no country of origin.⁴

Three occupation columns close out the schedule, the first time occupational data appeared on a U.S. census:⁵

Agriculture, which captured roughly 83 percent of the counted workforce.
Commerce, meaning trade and mercantile activities.
Manufactures, defined in the instructions as “all those artificers, handicraftsmen, and mechanics, whose labor is preeminently of the hand, and not upon the field.”

Each working person, including enslaved laborers, was assigned to only one column. Someone who farmed part of the year and traded the rest was placed under whichever sector best described their primary work.⁵

Reading the Tick Marks on the Original Page

Information on the original schedules is almost always recorded as tick marks or hash counts inside each column, not written-out numbers, and the pages themselves rarely have printed column headers.¹ Without a template that matches the 1820 layout, a tick could be a small child or an elderly relative and you have no way to tell which.

The National Archives publishes a blank 1820 template you can print and hold alongside the digitized image to line up the columns.³ Watch the 16-to-18 and 16-to-26 male columns carefully so you don’t double-count. Legibility varies by enumerator: some used heavy ink that bled through the paper, and abbreviations for town names weren’t standardized. When a page is hard to read, land deeds, probate records, and tax lists from the same period can help you confirm the household.

Where to Find and Download the Form

The National Archives holds the original 1820 schedules on microfilm as NARA publication M33, 142 rolls.⁶ Digitized images are available through NARA’s partners. Ancestry.com hosts a searchable, indexed database of the returns; FamilySearch.org provides free access to the same microfilm images. A blank downloadable version of the form itself sits on the National Archives site.³

Schedules are organized geographically: state or territory, then county, then township or division. Start with the broadest location you know and narrow down. If you’re not sure which county an ancestor lived in, a statewide index on Ancestry or in published form at many libraries will point you to the correct roll.

Missing Schedules and What to Use Instead

Before you start hunting, check whether records for your area still exist. Entire jurisdictions are gone: Arkansas Territory, Missouri Territory, and the whole state of New Jersey.²

Partial losses affect several other states. Georgia is missing parts of Columbia County along with Franklin, Rabun, and Twiggs Counties. North Carolina is missing Currituck, Franklin, Martin, Montgomery, Randolph, and Wake Counties. Tennessee lost schedules for more than twenty counties in its eastern region, including Knox, Hamilton, and Greene. Scattered gaps also affect Indiana (Daviess County), Maine (parts of Washington County), New Hampshire (all of Grafton County and portions of Rockingham and Strafford Counties), and Ohio (Franklin and Wood Counties).²

When your county is one of the losses, tax lists from the same period are the most common substitute. They were typically compiled every year and record the names of individuals responsible for paying taxes on land, enslaved persons, or other taxable property. They won’t give you age or household composition, but they can place an ancestor in a specific county at a specific time. Rules for who appeared on tax rolls varied by jurisdiction: the taxable age might have been 16, 18, or 21, and some jurisdictions exempted certain groups entirely.

1
United States Census Bureau. 1820 Census
2
National Archives. 1820 Census Records
3
National Archives. 1820 Census Form
4
GovInfo. 3 US Statutes at Large 548 – An Act to Provide for Taking the Fourth Census
5
United States Census Bureau. Statistics of Occupations at the Twelfth and Preceding Censuses
6
National Archives. Census Records