Thinking about living on the Chesapeake Bay? You would have a lot of neighbors. Here are the numbers, and a few ways to be a good one.
Quick answer: Living on the Chesapeake Bay means sharing a watershed with about 18.6 million people (2022). The population is expected to pass 20 million by 2040. Runoff from roofs and pavement is the fastest growing source of Bay pollution, so rain gardens and porous paths matter.
Contents
How Many People Live Here
About 18.6 million people lived in the watershed in 2022. From 1980 to 2024, the number grew by about 49 percent.[1]
What’s Next
| Year | Projected population |
|---|---|
| 2030 | 19.7 million |
| 2040 | 20.7 million |
| 2050 | 21.7 million |
Source: Chesapeake Bay Program.[1]
Land and Water
About 23 percent of the region’s land was protected by 2024.[1] Growth has cost nearly 100,000 acres of forest.[1]
Be a Good Neighbor
Use a rain garden, gravel or pavers, and downspouts that drain onto grass.[1]
Frequently asked questions
How many people live in the Chesapeake Bay watershed? About 18.6 million in 2022.
Is the Bay area growing? Yes; it is expected to pass 20 million people by 2040.
How can homeowners help the Bay? Rain gardens, porous paths and downspouts on grass slow runoff.
References
- [1] Chesapeake Bay Program, Population Growth and Development – last checked 11/08/2026
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