Iowa

Iowa HF 756 (2021), effective July 1, 2021 (age floor later lowered by HF 924, effective July 1, 2025), made both open and concealed carry permitless for eligible adults 18+. Iowa Code §724.4/§724.5.

No Iowa statute singles out places of worship as prohibited; carry there is subject to ordinary property-owner discretion.

No Iowa statute restricts carry by location in restaurants/bars. Iowa Code § 724.4C makes it a crime to carry a dangerous weapon while under the influence of alcohol or drugs; owners may separately prohibit on their property.

Iowa has statewide permitless carry for qualifying adults (effective 2021) alongside its optional professional/nonprofessional permit system administered by the Dept. of Public Safety. No Iowa-specific boat, vessel, or waterway firearms restriction was found in this research.

Iowa Code §724.32 lets the chief judge of a judicial district restrict an entire courthouse from firearms by administrative order; absent such an order, only courtrooms and court offices are off-limits. General government buildings such as a DMV office or city hall are not restricted by this provision, and Iowa has broad firearm preemption limiting local bans. Whether a given courthouse is fully closed to carry therefore depends on that district's judicial order.

No specific Iowa statute addresses campus carry; institutions (public and private) set their own policy. As of Jan. 2025 no Iowa public or private university permitted concealed carry on campus.

Iowa has no statewide signage mandate for private business; a property owner may exclude a carrier under general trespass law (Iowa Code § 716.7), but carry is presumptively lawful absent notice.

No IA statute requires advance owner consent; general trespass law (Iowa Code 716.7-716.8) requires notice before presence becomes unlawful (opt-out default). Constitutional-carry state.

No Iowa source found mentions airports among restricted locations; usacarry.com's list for Iowa covers school/park weapons-free zones, state buildings, casinos, universities, and the state fairgrounds, with no airport entry. Absence from that list suggests state law may not restrict non-secure terminal carry, but I found no Iowa statute or second source that affirmatively confirms this, so I'm not marking it a confirmed yes.

Iowa allows permitless carry for eligible adults 18+, covering vehicle carry. Iowa Code §724.4C bars carrying a weapon in/near a vehicle while intoxicated (with a self-defense carveout), and §724.4E separately bars minors from carrying/transporting a handgun in a vehicle.

No Iowa statute prohibits firearms in hospitals.

Iowa is permitless-carry. The 'going armed with intent' statute (Iowa Code §724.4) contains no location-based prohibition list, let alone a rest-area carve-out. Verified against the statute text directly.

No general duty-to-inform statute found. Iowa Code § 724.4D creates only a narrower duty to cooperate with an investigating officer when the carrier's behavior creates reasonable suspicion of danger to self/others — not a general disclosure requirement.

Iowa DPS / county sheriffs: "The sheriff of your county of residence is the only person who is authorized to issue permits unless you are a non-resident of Iowa... in which case the Commissioner of [the Iowa Department of] Public Safety can issue permits to carry." Non-residents apply directly to Iowa DPS in Des Moines.

Iowa Code §724.4B(1) bans carrying/going armed with a firearm on public or non-public K-12 school grounds; the only exception (§724.4B(2)(a)) is a person specifically authorized by the school itself — there is no standing exemption for permit-to-carry holders as such, even though Iowa is permitless-carry generally.

No Iowa-specific firearm-signage criminal statute is known to me, and I could not fetch Iowa's general trespass statute (Iowa Code § 716.7/716.8) to confirm its notice requirements in this session.

Iowa Code § 724.28 bars political subdivisions from regulating lawful possession/carrying/transport of firearms, with civil damages ($100-$25,000 depending on willfulness) plus attorney's fees for violations. Narrow exception allows restrictions in government buildings with screening/armed security.

No Iowa statute found prohibiting firearms at polling places; not individually verified against Iowa's own prohibited-places statute beyond MAP's research and the consistent pattern found across every other state checked in this research effort.

No state-level magazine capacity restriction found.

No extreme risk protection order or red flag statute found in Iowa.

Suppressors and SBR/SBS are legal, but ordinary civilian machine gun possession is not, even with full federal NFA registration. Iowa Code § 724.1B makes suppressor possession unlawful only 'in violation of federal law' (i.e., federally compliant suppressors are legal); § 724.1C applies the same standard to SBR/SBS, legalized in 2016. Machine guns, however, are 'offensive weapons' under § 724.1/§724.2, listing only specific authorized possessors (peace officers, military, licensed manufacturers/dealers) with no general carve-out for a private citizen holding a federally registered pre-1986 transferable machine gun — knowing possession by an ordinary civilian is a class 'D' felony regardless of federal registration.

Stand Your Ground by statute: Iowa Code § 704.1(3) (2017 amendment) — no duty to retreat.

Iowa Code §§ 724.15, 724.17-724.20 (as amended by HF 756, 2021) create an optional 'permit to acquire' pistols/revolvers, but per Giffords it applies only to purchases from licensed dealers -- 'this optional permit system does not apply to anyone buying a firearm from a private seller who is not a licensed dealer.' No background check is required for a private-party sale.