John Locke's social contract theory

John Locke's social contract theory argues that free individuals consent to form a government whose job is to protect their natural rights (life, liberty, property), and that citizens may alter or abolish a government that violates that agreement.

Verified for the 2027 AP US Government examLast updated June 2026

What is John Locke's social contract theory?

John Locke's social contract theory starts with a thought experiment. Imagine people living in a "state of nature" with no government at all. Locke argued that even there, people have natural rights to life, liberty, and property. The problem is that nobody enforces those rights. So people make a deal. They agree (consent) to create a government, and in exchange the government's one job is to protect their rights. That deal is the social contract.

The radical part is what happens when government breaks the deal. If a government tramples the rights it was created to protect, Locke says the people can withdraw their consent and replace it. Power flows from the people up, not from a king down. You can hear Locke almost word for word in the Declaration of Independence ("life, liberty, and the pursuit of happiness," "consent of the governed"), and his logic of limited, accountable government runs underneath the entire Constitution and the ratification debates covered in Topic 1.5.

Why John Locke's social contract theory matters in AP Gov

This term lives in Unit 1: Foundations of American Democracy and connects directly to Topic 1.5: Ratification of the U.S. Constitution, supporting learning objective AP Gov 1.5.A on how political negotiation and compromise shaped the constitutional system. Locke is the philosophical backdrop for those negotiations. The whole reason the framers argued so hard over representation (the Great Compromise), presidential selection (the Electoral College), and the limits of federal power is that they were trying to build a government grounded in consent that couldn't easily violate rights. Locke also explains why the Articles of Confederation got replaced through a ratification process at all. If government is a contract, the people can renegotiate it. For the exam, Locke is one of the Enlightenment thinkers you need to connect to the foundational documents, especially the Declaration of Independence, which is a required document in AP Gov.

How John Locke's social contract theory connects across the course

Natural Rights (Unit 1)

Natural rights are the thing the social contract exists to protect. Locke's claim is that life, liberty, and property belong to you before any government exists, so government can't legitimately take them away. The contract is the mechanism; natural rights are the cargo.

Consent of the Governed (Unit 1)

Consent is how the contract gets signed. A government is legitimate only because the people agreed to it, which is why the Constitution opens with "We the People" and why it had to be ratified by state conventions rather than just imposed.

State of Nature (Unit 1)

The state of nature is Locke's "before" picture, life without government. For Locke it's free but insecure, since nobody enforces your rights. That insecurity is what makes the social contract a rational trade.

Constitutional Convention (Unit 1)

The Convention is Locke's theory in action. Delegates literally renegotiated the social contract, scrapping the Articles of Confederation and bargaining (Great Compromise, Electoral College, Three-Fifths Compromise) to design a government the people would actually consent to ratify.

Is John Locke's social contract theory on the AP Gov exam?

Locke shows up most often in multiple-choice questions that ask you to match an Enlightenment idea to a foundational document, especially excerpts from the Declaration of Independence that echo "consent of the governed" or unalienable rights. You might also see a stimulus quote from Locke himself and be asked which constitutional principle it supports (limited government, popular sovereignty). No released FRQ has used the phrase "social contract theory" verbatim, but the concept is exactly what the Concept Application and Argument Essay FRQs reward in Unit 1. The Argument Essay frequently requires the Declaration of Independence as evidence, and Locke is the fastest way to explain what the Declaration is arguing. Your job on the exam is not to recite Locke's biography. It's to connect his ideas (natural rights, consent, right of revolution) to specific documents and to the design choices made at the Constitutional Convention.

John Locke's social contract theory vs Hobbes's social contract theory

Both Locke and Hobbes use the social contract framework, but they reach opposite conclusions. Hobbes saw the state of nature as a war of all against all, so people surrender their freedom to an absolute ruler in exchange for order, and they don't get to take it back. Locke saw the state of nature as free but insecure, so people lend limited power to a government, keep their natural rights, and can revoke consent if the government abuses them. The Declaration of Independence is Lockean, not Hobbesian. If an answer choice describes giving up rights permanently for security, that's Hobbes. If it describes conditional consent and a right to revolt, that's Locke.

Key things to remember about John Locke's social contract theory

  • Locke's social contract theory says individuals consent to form a government in exchange for protection of their natural rights to life, liberty, and property.

  • If a government violates the contract by trampling rights, Locke argues the people have the right to alter or abolish it, which is the core logic of the Declaration of Independence.

  • Locke's ideas justified replacing the Articles of Confederation and underpin the ratification debates and compromises covered in Topic 1.5 (AP Gov 1.5.A).

  • On the exam, link Locke to popular sovereignty, limited government, and consent of the governed, not to a specific clause of the Constitution.

  • Don't mix up Locke and Hobbes. Hobbes's contract trades freedom for order under an absolute ruler, while Locke's contract is conditional and revocable.

Frequently asked questions about John Locke's social contract theory

What is John Locke's social contract theory in AP Gov?

It's the idea that free individuals consent to create a government whose job is protecting their natural rights (life, liberty, property), and that the people can replace a government that breaks this agreement. It appears in Unit 1 as the philosophical foundation for the Declaration of Independence and the Constitution.

Is Locke's social contract theory actually in the Constitution?

Not word for word, no. The Constitution never says "social contract" or "natural rights." But the theory shapes its structure, since "We the People" reflects consent of the governed, and ratification by state conventions was the people literally agreeing to the contract.

How is Locke's social contract different from Hobbes's?

Hobbes argued people permanently surrender their freedom to an absolute sovereign in exchange for security. Locke argued people grant limited power, keep their natural rights, and can revoke consent if government abuses them. The American founding follows Locke's version.

Why does AP Gov connect Locke to the Declaration of Independence?

Because Jefferson borrowed Locke's framework almost directly in 1776. The Declaration's "life, liberty, and the pursuit of happiness," "consent of the governed," and the right to "alter or abolish" unjust government are Lockean social contract ideas, and the Declaration is a required foundational document on the exam.

Does Locke's social contract theory show up on the AP Gov exam?

Yes, mostly in stimulus-based multiple-choice questions pairing Locke quotes with constitutional principles, and as a tool for the Argument Essay when you use the Declaration of Independence as evidence. You won't be asked for Locke's biography, just how his ideas connect to the foundational documents.