Clear Lake, TX - Real Estate Clear Lake, a city within a city, is home to NASA and the Kemah Boardwalk, and is located southeast of Houston in Harris County. Bellaire Champion Forest / 1960 Clear Lake Cypress Cypresswood Friendswood Galleria Heights Katy Katy - Cinco Ranch Kingwood Memorial Meyerland Missouri City Montrose Northwest / SH290 Pearland Pearland - Shadow Creek Ranch Richmond / Rosenberg River Oaks Royal Oaks Country Club Sienna Plantation Spring - Gleannloch Farms Sugar Land Sugar Land - First Colony Sugar Land - Greatwood / River Park Sugar Land - New Territory / Telfair West Houston West University The Woodlands