
Cape St Claire
- County:
- Anne Arundel County
- County Seat:
- No
- Area (mi²):
- 2
- State:
- Maryland
Cape St. Claire is a CDP located in Anne Arundel County, Maryland. Cape St. Claire has a 2025 population of 9,328. Cape St. Claire is currently growing at a rate of 0.41% annually and its population has increased by 10.98% since the most recent census, which recorded a population of 8,405 in 2020.
The average household income in Cape St. Claire is $161,613 with a poverty rate of 3.04%. The median age in Cape St. Claire is 40.2 years: 38.5 years for males, and 41.8 years for females.