Sea levels are rising primarily because the sea is warming, and water, like most substances, expands as it heats up. Global warming does not affect every place

Sea levels are rising primarily because the sea is warming, and water, like most substances, expands as it heats up. Global warming does not affect every place on Earth evenly, that's partly why the phrase "climate change" is preferred. It's possible that you live in an area that due to the local or regional geography, the sea level has not changed much.