Spiders by state
The single most useful fact in US spider identification is that brown recluses live in a fairly small part of the country. If your state is not on the recluse list, the spider you are worried about is almost certainly something else.
Alabamabrown recluseAlaskano brown recluseArizonano brown recluseArkansasbrown recluseCaliforniano brown recluseColoradono brown recluseConnecticutno brown recluseDelawareno brown recluseFloridano brown recluseGeorgiabrown recluseHawaiino brown recluseIdahono brown recluseIllinoisbrown recluseIndianabrown recluseIowabrown recluseKansasbrown recluseKentuckybrown recluseLouisianabrown recluseMaineno brown recluseMarylandno brown recluseMassachusettsno brown recluseMichiganno brown recluseMinnesotano brown recluseMississippibrown recluseMissouribrown recluseMontanano brown recluseNebraskabrown recluseNevadano brown recluseNew Hampshireno brown recluseNew Jerseyno brown recluseNew Mexicono brown recluseNew Yorkno brown recluseNorth Carolinano brown recluseNorth Dakotano brown recluseOhiobrown recluseOklahomabrown recluseOregonno brown reclusePennsylvaniano brown recluseRhode Islandno brown recluseSouth Carolinano brown recluseSouth Dakotano brown recluseTennesseebrown recluseTexasbrown recluseUtahno brown recluseVermontno brown recluseVirginiano brown recluseWashingtonno brown recluseWest Virginiano brown recluseWisconsinno brown recluseWyomingno brown recluse