How Many Units in AP Micro? The 2026 Exam Unit Count
The AP Microeconomics course is organized into 6 units — that’s the direct answer to how many units in AP micro. The College Board restructured the course for the 2022–23 school year, and that same 6-unit framework carries into the 2026 exam.
What the 6 Units Cover
The units build from foundational concepts toward real-world policy applications:
- Basic Economic Concepts — scarcity, opportunity cost, comparative advantage, and the production possibilities curve.
- Supply and Demand — how markets set prices, plus elasticity.
- Production, Cost, and the Perfect Competition Model — firm costs and profit-maximizing output.
- Imperfect Competition — monopoly, oligopoly, and monopolistic competition.
- Factor Markets — how labor and capital are priced.
- Market Failure and the Role of Government — externalities, public goods, and government intervention.
The units aren’t weighted equally. Supply and demand along with firm behavior dominate the exam, while factor markets and market failure carry less weight. The College Board publishes the exact percentages in its course and exam description, and those are the numbers to trust over any third-party summary.
Here’s a quick example of why the weighting matters. If a question asks you to find a competitive firm’s profit-maximizing quantity, that’s Unit 3 territory — high-yield and likely to appear in both multiple-choice and free-response sections. Meanwhile, an externality graph question (Unit 6) is worth knowing but shows up less often. When you’re short on study time, Units 1–4 deserve the bulk of your attention because they combine the heaviest weights with the most graph-heavy problem types.
Key Takeaways
- AP Micro has 6 units, unchanged for the 2026 exam.
- The units run from basic concepts → supply and demand → firm behavior → factor markets → market failure.
- Units 1–4 carry the most exam weight and the most graphing problems, so prioritize them.
- Check the College Board course description for the official unit percentages before you finalize a study plan.
