3.98 avg rating — 22,965 ratings

"Alabama"

4.10 avg rating — 513 ratings

"Arizona"

3.83 avg rating — 19,341 ratings

"Alaska"

3.59 avg rating — 35,156 ratings

"California"

3.69 avg rating — 2,090 ratings

"Arkansas"

3.55 avg rating — 13,185 ratings

"Arkansas"

3.67 avg rating — 17,566 ratings

"Colorado"

3.81 avg rating — 11,302 ratings

"Connecticut"

4.12 avg rating — 9,206 ratings

"Delaware (none of the novels I found suggested for this state appealed to me, so I read this instead. Murder is horrifying in and of itself)"

3.51 avg rating — 52,605 ratings

"Idaho"

3.73 avg rating — 42,257 ratings

"Missouri"

3.82 avg rating — 94,919 ratings

"Vermont"

3.58 avg rating — 7,148 ratings

"Virginia"

4.28 avg rating — 1,694,724 ratings

"Colorado"

3.94 avg rating — 55,573 ratings

"Georgia"

3.89 avg rating — 33,897 ratings

"Georgia"

4.04 avg rating — 441 ratings

"Florida"

3.85 avg rating — 9,029 ratings

"Florida"

3.76 avg rating — 3,661 ratings

"Hawaii
"

3.82 avg rating — 8,389 ratings

"Illinois"

3.59 avg rating — 4,788 ratings

"Iowa"

3.57 avg rating — 8,212 ratings

"Indiana"

3.67 avg rating — 4,980 ratings

"Iowa"

3.75 avg rating — 23,332 ratings

"kansas"

3.94 avg rating — 834,396 ratings

"Kansas Not really horror, but pretty terrifying all the same
"

3.79 avg rating — 296 ratings

"Kentucky"

3.80 avg rating — 38,401 ratings

"Louisiana"

3.93 avg rating — 35,963 ratings

"Maryland
"

3.92 avg rating — 843 ratings

"Maine"

4.04 avg rating — 209,400 ratings

"Michigan"

3.77 avg rating — 3,917 ratings

"Maryland"

3.59 avg rating — 17,264 ratings

"Massachusetts "

3.88 avg rating — 32,621 ratings

"Minnesota"

3.69 avg rating — 1,981 ratings

"Mississippi -- This is maybe weak horror, but strong gothic. A good read regardless.
"

3.68 avg rating — 112,897 ratings

"Montana
"

3.79 avg rating — 1,569 ratings

"Missouri
"

3.39 avg rating — 7,890 ratings

"Nebraska"

3.39 avg rating — 45,729 ratings

"Nebraska (Young adult, typical slasher story)"

4.11 avg rating — 934 ratings

"Nevada"

3.75 avg rating — 5,686 ratings

"New Hampshire
"

3.28 avg rating — 1,877 ratings

"New Jersey"

3.66 avg rating — 6,965 ratings

"New Jersey"

3.41 avg rating — 4,151 ratings

"Pennsylvania"

4.06 avg rating — 39,423 ratings

"Washington"

3.99 avg rating — 21,674 ratings

"West Virginia
"

3.83 avg rating — 11,473 ratings

"New Mexico
"

3.82 avg rating — 34,692 ratings

"New York"

3.71 avg rating — 49,051 ratings

"New York"