AP Human Geography · Unit 2 · Stages
All five DTM stages with birth-rate and death-rate patterns, real country examples, and exam traps—built for quick review before practice.
Main stage guide: Use these five stage cards for AP review. Skim the DTM overview first if you need CBR/CDR definitions, then add country examples for FRQ evidence.
Use this table when a stimulus gives numbers or a pyramid silhouette. Then open the stage cards below for rate patterns and exam wording, or jump to eleven countries on a world map when the prompt names a place.
| Stage | CBR / CDR | Natural increase | Pyramid clue | Example regions |
|---|---|---|---|---|
| 1 — High stationary | High / high | Near zero | Wide base, narrow top | Pre-1750 Europe; historic norm |
| 2 — Early expanding | High / falling | Rapid | Very wide base | Niger; parts of Sub-Saharan Africa |
| 3 — Late expanding | Falling / low | Moderate, slowing | Base narrows | India; Bangladesh (transitioning) |
| 4 — Low stationary | Low / low | Near zero | Column-like | United States; Thailand |
| 5 — Declining? | Very low / low | Negative possible | Pinched or inverted base | Japan; Germany; South Korea |
Both crude birth and death rates stay high, so natural increase is near zero. Infant mortality, disease, and limited medicine keep deaths elevated; families still have many children for labor and security.
AP move: Cite pre-industrial Europe or historic global patterns—not modern countries with hospitals and vaccines.
Death rates fall first (sanitation, vaccines, food security) while birth rates stay high. The gap produces the fastest natural increase and a very wide pyramid base.
Examples: Much of Sub-Saharan Africa and Guatemala showed classic Stage 2 patterns in the late twentieth century. Name a mechanism (clean water, antibiotics) plus a consequence (school crowding, youth dependency). See the Niger rapid-growth write-up for a full FRQ-style sentence.
Birth rates decline with urban jobs, education, and contraception access while death rates remain low. Population still grows, but the pace slows and the pyramid base narrows.
Examples: Brazil, Mexico, and Indonesia during late industrialization. The trap: Stage 3 is not the fastest growth—that is Stage 2. Compare India population momentum and Brazil urbanization on the country examples page.
Both rates are low; natural increase is small. Societies age, dependency shifts toward elders, and migration may matter more than births minus deaths.
Examples: United States, France, and much of Thailand today. Pair a rectangular pyramid with retirement and health-care policy debates.
Some textbooks add Stage 5 when fertility falls below replacement and deaths can exceed births without immigration. Aging workforces and pronatalist debates dominate.
Examples: Japan, Germany, Italy, and South Korea. Distinguish natural decrease from out-migration on FRQs—they need different policy tools. Read the Japan aging example and Germany labor-pressure example for model answers.
Try these before the full 20-question quiz or the eight country-example MCQs. Click an answer to reveal reasoning.
Q1. Which stage has high CBR and high CDR?
EasyAP tip: Eliminate stages with low death rates first.
Q2. Rapid natural increase with falling CDR indicates:
EasyAP tip: Look for the death-rate drop clue.
Q3. A narrowing pyramid base with low CDR suggests:
MediumAP tip: Pyramid shape backs rate trends.
Before test day: Re-read the DTM Overview, then sketch CBR and CDR lines from memory.
On MCQs and FRQs, compare birth and death rates first, then check the pyramid. Use this flow when a country name is not given.
| Stage | Birth rate | Death rate | Growth |
|---|---|---|---|
| Stage 2 | Still high | Falling | Fastest |
| Stage 3 | Falling | Low | Slowing |
Mistake: Calling Stage 2 low birth
Fix: CBR stays high in Stage 2; deaths fell first.
Mistake: Fastest growth in Stage 3
Fix: Stage 2 has the widest rate gap.
Mistake: Label only, no evidence
Fix: Add CBR/CDR direction or pyramid shape.
Mistake: Every country fits perfectly
Fix: The DTM is a model; policy and migration bend the path.
Stage from graph or pyramid → explain why CBR and CDR look that way → one social or economic effect → one policy (family planning, pronatalist, or migration).
India is usually placed in late Stage 3 or early Stage 4: death rates are low, birth rates have fallen sharply since the 1970s, but momentum from past high fertility still adds people. Mention a narrowing pyramid base and slowing—not explosive—growth.
Modern China aligns with Stage 4 and Stage 5 pressure: very low fertility after urbanization and past family-planning policy, plus rapid aging. Do not describe today’s China as Stage 2; cite low CBR/CDR and top-heavy age structure.
Japan has had below-replacement fertility for decades, so natural decrease is possible without immigration. Exam answers should link aging, labor shortages, and limits of pronatalist subsidies—not only government programs.
Brazil is largely Stage 4 with regional variation: low CBR and CDR nationally, but the Northeast historically lagged the industrialized South. Mention uneven development inside one country when the prompt allows comparison.
Stage 2: high CBR with CDR that recently fell—widest growth gap. Stage 3: CBR clearly declining while CDR stays low—growth continues but slows. A graph with CBR sliding toward CDR signals Stage 3; high CBR beside newly low CDR signals Stage 2.
Use the DTM practice page for 20 MCQs with explanations and three FRQ prompts with rubrics.