AbstractTicks and tick-borne diseases are increasing in the United States, including New Hampshire (NH). We report on the findings of an ongoing free crowdsourcing program spanning four years within NH. The date of tick’s submission was recorded along with species, sex, stage, location they were collected (translated into latitude and longitude), the activity the individual was doing when the tick was found, and host species. A total of 14,252 ticks belonging to subclass Acari, family Ixodidae and generaIxodes,Dermacentor,Amblyomma, andHaemaphysaliswas recorded from the period 2018–2021 throughout NH. A total of 2,787Ixodes scapularisand 1,041Dermacentor variabilis, were tested for the presence ofBorreliasp. (Spirochaetales: Spirochaetaceae),B. burgdorferi sensu lato,B. miyamotoi,B. mayonii,Babesia microti(Piroplasmida: Babesiidae),Anaplasma phagocytophilum(Rickettsiales: Anaplasmataceae),Francisella tularensis(Thiotrichales: Francisellaceae), andRickettsia rickettsii(Rickettsiales: Rickettsiaceae) by PCR. For theI. scapularisticks tested, the pathogen prevalence was 37%B. burgdorferi s.l. 1%B. miyamotoi, 6%A. phagocytophilum, and 5%Ba. microti. Only oneD. variabilisresulted positive toF. tularensis.We created state-wide maps informing the differences of ticks as detailed by administrative divisions.Dermacentor variabilispeaked in June andI. scapularispeaked in May and October. The most reported activity by people with tick encounters was while walking/hiking, and the least was biking. Using the reported distribution of both species of ticks, we modeled their climate suitability in the target territory. In NH,I. scapularisandD. variabilishave distinct patterns of emergence, abundance, and distribution. Tick prevention is important especially during April–August when both tick species are abundant and active.