Below is a list of which states allow crossbow hunting. The list is meant as a reference only since regulations tend to differ and change frequently. Therefore it is wise to check with your state regulations on a yearly basis.
Almost all of the states allow crossbow hunting but… some states only allow crossbow hunting if your disabled:
ALABAMA:
www.outdooralabama.com
ALASKA:
http://www.state.ak.us
ARIZONA:
http://www.gf.state.az.us
ARKANSAS:
http://www.agfc.state.ar.us
CALIFORNIA:
http://www.dfg.ca.gov
COLORADO:
http://www.dnr.state.co.us
CONNECTICUT:
http://www.dep.state.ct.us
DELAWARE:
http://www.dnrec.state.de.us
FLORIDA:
http://myfwc.com/
GEORGIA:
http://www.gohuntgeorgia.com
HAWAII:
http://www.hawaii.gov/dlnr
IDAHO:
http://www.dnr.state.il.us
INDIANA:
http://www.in.gov/dnr/
IOWA:
http://www.iowadnr.com/
KANSAS:
http://www.kdwp.state.ks.us
KENTUCKY:
http://fw.ky.gov/
LOUISIANA:
http://www.wlf.state.la.us
MAINE:
http://www.maine.gov/ifw/
MARYLAND:
http://www.dnr.state.md.us
MASSACHUSETTS:
http://www.masswildlife.org
MICHIGAN:
http://www.michigan.gov/dnr/
MINNESOTA:
http://www.dnr.state.mn.us
MISSISSIPPI:
http://www.mdwfp.com
MISSOURI:
http://www.mdc.mo.gov/hunt/
MONTANA:
http://fwp.mt.gov/hunting
NEBRASKA:
http://www.ndow.org/about/pubs/pdf/huntregs/appbro/index.shtm
NEW HAMPSHIRE:
http://www.wildlife.state.nh.us
NEW JERSEY:
http://www.njfishandwildlife.com/news/2009/gamecode09.htm
NEW MEXICO:
http://www.wildlife.state.nm.us
NEW YORK:
http://www.dec.state.ny.us
NORTH CAROLINA:
http://www.ncwildlife.org
NORTH DAKOTA:
http://gf.nd.gov/
OHIO:
http://www.dnr.state.oh.us
OKLAHOMA:
http://www.wildlifedepartment.com
OREGON:
http://www.dfw.state.or.us
PENNSYLVANIA:
http://www.pgc.state.pa.us
RHODE ISLAND:
http://www.dem.ri.gov/
SOUTH CAROLINA:
http://www.dnr.sc.gov/
SOUTH DAKOTA:
http://www.state.sd.us
TENNESSEE:
http://www.state.tn.us/twra
TEXAS:
http://www.tpwd.state.tx.us
UTAH:
http://www.wildlife.utah.gov
VERMONT:
http://www.vtfishandwildlife.com
VIRGINIA:
http://www.dgif.state.va.us
WASHINGTON:
http://www.wdfw.wa.gov
WEST VIRGINIA:
http://www.wvdnr.gov/
WISCONSIN:
http://www.dnr.state.wi.us
WYOMING:
http://gf.state.wy.us/
Keep in mind that a crossbow is considered to be a firearm, and hence many different regulations apply from state to state when it comes to which state allows crossbow hunting.