The　Long　Point　Fault　is　one　of　the　most　active　urban　faults　in　Houston,　Texas,　which　belong　to　a　complex　system　of　normal　growth　faults　along　the　Texas　Gulf　Coast.　To　assess　the　activity　of　the　Long　Point　Fault,　a　GPS　array　with　12　permanent　stations　was　installed　along　the　two　sides　of　the　16-km-long　fault　scarp　in　2013.　GPS　datasets　were　processed　with　the　Precise　Point　Positioning　(PPP)　and　Double-Difference　(DD)　methods.　The　daily　PPP　solutions　with　respect　to　the　International　Global　Navigation　Satellite　System　(GNSS)　Reference　Frame　2014　(IGS14)　were　converted　to　the　Stable　Houston　Reference　Frame　(Houston16).　The　six-year　continuous　GPS　observations　indicate　that　the　Long　Point　Fault　is　currently　inactive,　with　the　rates　of　down-dip-slip　and　along-strike-slip　being　below　1　mm/year.　The　Long　Point　Fault　area　is　experiencing　moderate　subsidence　varying　from　5　to　11　mm/year　and　a　coherent　horizontal　movement　towards　the　northwest　at　a　rate　of　approximately　2　to　4　mm/year.　The　horizontal　movement　is　induced　by　the　subsidence　bowl　that　has　been　developing　since　the　1980s　in　the　Jersey　Village　area.　Current　surficial　damages　in　the　Long　Point　Fault　area　are　more　likely　caused　by　ongoing　uneven　subsidence　and　its　induced　horizontal　strains,　as　well　as　the　significant　seasonal　ground　deformation,　rather　than　deep-seated　or　tectonic-controlled　fault　movements.　The　results　from　this　study　suggest　a　cause-and-effect　relationship　between　groundwater　withdrawals　and　local　faulting,　which　is　pertinent　to　plans　for　future　urban　development,　use　of　groundwater　resources,　and　minimization　of　urban　geological　hazards.