Actual Enumeration, What the Census Clause Requires Every Ten Years

Here is a sentence nobody expects to find thrilling: the Constitution requires the government to count people. It turns out to be one of the most fought-over sentences in the document. The count decides how many seats each state gets in the House, how many electoral votes it casts for president, and, through formulas Congress later attached, where a great deal of federal money goes. Get the count wrong and you have quietly moved political power from one state to another for ten years.

So let's do this properly. Define the terms, read the text, run the history, then take on the hardest question in the debate: whether people who are not citizens should be counted.

The text and the two words that matter

The command sits in Article I, Section 2, Clause 3:

The actual Enumeration shall be made within three Years after the first Meeting of the Congress of the United States, and within every subsequent Term of ten Years, in such Manner as they shall by Law direct.

Two phrases do most of the work.

"Actual Enumeration." An enumeration is a count, one by one. "Actual" is the Founders underlining the word. Before the first census, the Convention allocated House seats by estimate, the numbers written into the same clause (65 seats, from New Hampshire's three to Virginia's ten). Those estimates were the product of guesswork and bargaining. The word "actual" told future Congresses that guesswork was over. From now on, you count.

"In such Manner as they shall by Law direct." Congress picks the method. It may decide who asks the questions, what forms are used, how residence is defined and how the results are tallied. But its discretion operates inside the command to make an actual enumeration. Congress chooses how to count. It may not choose not to count.

The purpose comes earlier in the same clause, which originally provided that representatives and direct taxes "shall be apportioned among the several States which may be included within this Union, according to their respective Numbers." The original formula included the three-fifths clause, a compromise over slavery that the 14th Amendment replaced in 1868. Section 2 of that amendment now reads:

Representatives shall be apportioned among the several States according to their respective numbers, counting the whole number of persons in each State, excluding Indians not taxed.

And because each state's electoral votes equal its House seats plus its two senators (Article II, Section 1), the census also sets the Electoral College. The arithmetic is simple: 435 representatives plus 100 senators plus 3 electors for the District of Columbia under the 23rd Amendment equals 538.

Why the Founders wanted a count

The census was a structural safeguard, not a statistical hobby. Consider the incentives the Framers built in.

1. Representation tied to population rewards a big count. A state wants more people counted so it gets more seats.
2. Direct taxes tied to population punish a big count. The same clause apportioned direct taxes by the same numbers, so a state that inflated its population would also inflate its tax bill.

The two incentives were meant to pull against each other and keep the states honest. In practice, direct taxes were rare, so the check was weaker than intended, but the logic shows how seriously the Founders took the danger of a manipulated count. They were not naive about human nature. They were building a machine that would run on it.

1790 to 1920, and the decade Congress refused

The first census began on August 2, 1790, under an act Congress passed that spring. U.S. marshals and their assistants went door to door. Thomas Jefferson, as secretary of state, oversaw the results. The count came in at roughly 3.9 million people. Both Washington and Jefferson suspected it was an undercount, a complaint that has followed every census since.

For more than a century the process ran on schedule. Each count was followed by an apportionment act that set the size of the House and divided the seats. Through the nineteenth century Congress usually solved disputes by enlarging the House so that no state lost a seat. In 1911 the House was set at 435.

Then came 1920. That census showed, for the first time, that more Americans lived in urban areas than rural ones. Rural members of Congress understood exactly what that meant: seats would move from farm states to industrial states and big cities. So Congress did something it had never done before and has never done since. It did not reapportion. Through the entire decade of the 1920s, the House was elected on the basis of the 1910 count.

Pause on that. The Constitution says the enumeration shall be made every ten years for the purpose of apportionment. Congress took the count and then sat on it, because the result was inconvenient. It is the clearest example in our history of why the Founders wrote "actual" and "shall." Imagine a referee who counts the points, sees which team won, and declares that the old score will stand for another ten years because the new one makes him uncomfortable. Nobody would call that a close call. They would call it a forfeit of the referee's only job. Millions of Americans who had moved to growing cities spent a decade represented according to where their parents had lived.

The fix was the Reapportionment Act of 1929, signed in June of that year. It made the process largely automatic: after each census, the president transmits the state populations and the resulting apportionment to Congress, and unless Congress acts, the new allocation takes effect. The House stayed at 435. A 1941 statute later fixed the mathematical method, the "method of equal proportions," which is still used. The lesson conservatives should draw from the 1920s is about process: when a constitutional duty depends on a vote by the people who stand to lose from it, build a default that runs on its own.

Sampling, citizenship and the courts

The modern fights have been about method and about questions.

Sampling: Department of Commerce v. U.S. House of Representatives (1999)

Before the 2000 census, the Census Bureau planned to use statistical sampling to adjust the count for people it expected to miss. The House sued. The Supreme Court held that the Census Act prohibits the use of sampling to produce the population figures used to apportion House seats. The Court decided the case on the statute, so it did not have to reach the constitutional question. But the word "actual" hovered over the whole dispute. A count adjusted by model is an estimate, and the Founders had already tried estimates in 1787.

The citizenship question: Department of Commerce v. New York (2019)

In 2018 the secretary of commerce announced that the 2020 census would ask whether each person was a citizen, a question that had appeared in various forms on census questionnaires in the nineteenth and twentieth centuries. States and advocacy groups sued.

Chief Justice Roberts wrote for the Court, and the decision split into two halves that people tend to remember selectively.

1. The power existed. The Court held that the Enumeration Clause and the Census Act permit the secretary to ask about citizenship. Asking a demographic question on the census is nothing new and nothing unconstitutional.
2. The stated reason did not hold up. The secretary had said the question was needed to help enforce the Voting Rights Act. The Court, applying the Administrative Procedure Act, concluded the record showed that rationale was contrived, and sent the matter back to the agency. The administration then dropped the question for 2020.

So the honest summary is this: the Court said the government may ask the question, but must give its real reason. That is an administrative-law holding, not a constitutional ban.

The hardest question: should noncitizens be counted?

Here is where the debate gets hot, and where it deserves a careful answer instead of a slogan.

The case for excluding them, stated fairly

Those who want apportionment to exclude noncitizens, or at least those present unlawfully, argue as follows. The point of apportionment is representation of the political community. Counting millions of people who cannot vote, and some who are not lawfully present at all, shifts House seats and electoral votes toward states with large noncitizen populations and away from states without them. That dilutes the votes of citizens in the losing states. A citizen in one state ends up with less influence over Congress than a citizen in another, for reasons that have nothing to do with how many citizens live in either.

That harm is real, and the argument is not frivolous.

Why the text points the other way

Now apply the text, because we do not get to rewrite a clause we dislike.

1. The word is "persons." The 14th Amendment says "the whole number of persons in each State." The original clause, before 1868, counted "the whole Number of free Persons" plus a fraction of others. In both versions the base was persons, not citizens and not voters. The drafters of the 14th Amendment debated basing apportionment on voters and chose persons instead.
2. The one exclusion is named. The amendment excludes "Indians not taxed," and only them. When a text lists one exception, the ordinary inference is that it means no others.
3. The first census counted inhabitants. The 1790 act directed the count of inhabitants by their usual place of abode, not by citizenship. Every census since has counted residents.
4. The Court has noticed. In Evenwel v. Abbott (2016), the Supreme Court held that a state may draw its own legislative districts using total population, relying in part on the history of the 14th Amendment's choice of persons. It did not decide whether a state could use some other base. And when a 2020 presidential memorandum directed that unlawfully present people be excluded from the apportionment base, the Court in Trump v. New York dismissed the challenge as premature without resolving the merits.

The most serious argument for exclusion rests on the word "inhabitant" and the idea that someone present in defiance of the law has no lawful residence. It is a real argument, but it runs uphill against the text and against more than two centuries of practice.

The verdict

On the current Constitution, the apportionment count includes every person who lives in the state. The textual case for that answer is strong. The remedy for the distortion conservatives rightly worry about is not to redefine "persons." It is:

• Enforce the immigration laws, so the count reflects lawful residents because the residents are lawful.
• Ask the citizenship question, which the Court has said Congress and the secretary may do, so the country has accurate data for redistricting, for the Voting Rights Act and for honest debate.
• If the people want a different base, amend the Constitution. Article V exists for precisely this kind of disagreement.

That position will satisfy neither the people who think the count is none of our business nor those who want to subtract by executive order. It has the advantage of being what the document says.

What the clause asks of a citizen

There is one more feature of the census that conservatives sometimes forget. The enumeration is not only a federal duty. It is a civic one. A household that refuses to answer does not strike a blow against Washington. It hands its own state a smaller share of the House. The Founders' design only works if people are counted.

That is also why the count should be protected from politics in both directions. A Congress that refuses to reapportion, as in the 1920s, betrays the clause. An agency that substitutes a statistical model for an actual count betrays it differently. An administration that hides the real reason for a question invites the courts to stop it. The cure for each is the same: follow the text, state your reasons honestly, and let the numbers fall where they fall.

For how the count feeds into the Electoral College, see Seven Myths About the Electoral College That Fall Apart Against the Record. For the three-fifths clause and what it did and did not mean, read The Three-Fifths Clause Limited Slaveholder Power and Measured No One's Worth. The Connecticut Compromise that paired a population-based House with an equal Senate is in The Connecticut Compromise Passed by One Vote on July 16, 1787, and the citizenship clause of the 14th Amendment is in Subject to the Jurisdiction Thereof, Six Words at the Center of Citizenship. If you want to see how this country compares with Europe on birthright citizenship, see Most of Europe Does Not Grant Citizenship by Birth Alone. Here Is the Map.

The case in brief

1. Article I, Section 2 requires an "actual Enumeration" every ten years, and Congress picks the method but may not skip the count.
2. The count apportions House seats and, through Article II, electoral votes: 435 plus 100 plus 3 makes 538.
3. Congress's refusal to reapportion after the 1920 census, fixed by the Reapportionment Act of 1929, shows why the duty needs an automatic default.
4. Department of Commerce v. New York (2019) held that a citizenship question is permitted, but the government must give its real reason.
5. The 14th Amendment counts "the whole number of persons," so the honest remedies for distortion are enforcing immigration law, collecting citizenship data, and, if the people want, an amendment.

What you can do: read Article I, Section 2 and Section 2 of the 14th Amendment side by side on the Constitution page, then make sure everyone in your household is counted when the next census arrives.