Every state, registry records explained.
56 state and territory buckets cover the combined source registry. States with a dedicated page are linked; those pages identify official National Parks separately from other metadata and visitation records.
| State / territory | Source records | Annual visits (5-yr avg) |
|---|---|---|
| AlaskaAK | 19 | 2,696,802 |
| AlabamaAL | 11 | 7,888,880 |
| ArkansasAR | 9 | 4,277,638 |
| American SamoaAS | 1 | 17,668 |
| ArizonaAZ | 25 | 18,272,253 |
| CaliforniaCA | 36 | 37,629,739 |
| ColoradoCO | 17 | 7,447,255 |
| ConnecticutCT | 5 | 6,249,195 |
| District of ColumbiaDC | 36 | 43,107,539 |
| DelawareDE | 4 | 184,029 |
| FloridaFL | 10 | 15,484,590 |
| GeorgiaGA | 12 | 13,237,941 |
| GuamGU | 1 | 386,994 |
| HawaiiHI | 9 | 3,133,487 |
| IowaIA | 4 | 168,384 |
| IdahoID | 10 | 5,185,477 |
| IllinoisIL | 8 | 165,906 |
| IndianaIN | 4 | 3,074,297 |
| KansasKS | 10 | 102,933 |
| KentuckyKY | 9 | 2,669,010 |
| LouisianaLA | 6 | 685,770 |
| MassachusettsMA | 18 | 14,372,300 |
| MarylandMD | 27 | 22,539,712 |
| MaineME | 7 | 10,257,971 |
| MichiganMI | 6 | 2,905,030 |
| MinnesotaMN | 6 | 1,473,523 |
| MissouriMO | 14 | 3,703,142 |
| Northern Mariana IslandsMP | 1 | 0 |
| MississippiMS | 10 | 14,838,641 |
| MontanaMT | 10 | 8,284,900 |
| North CarolinaNC | 12 | 40,018,135 |
| North DakotaND | 5 | 756,408 |
| NebraskaNE | 10 | 470,112 |
| New HampshireNH | 2 | 6,242,567 |
| New JerseyNJ | 11 | 19,555,721 |
| New MexicoNM | 19 | 2,343,473 |
| NevadaNV | 7 | 7,728,007 |
| New YorkNY | 32 | 24,091,976 |
| OhioOH | 10 | 3,160,872 |
| OklahomaOK | 7 | 2,259,171 |
| OregonOR | 10 | 2,358,864 |
| PennsylvaniaPA | 26 | 16,918,583 |
| Puerto RicoPR | 1 | 1,174,426 |
| Rhode IslandRI | 4 | 34,893 |
| South CarolinaSC | 8 | 1,276,064 |
| South DakotaSD | 7 | 4,313,239 |
| TennesseeTN | 15 | 29,660,558 |
| TexasTX | 18 | 5,447,368 |
| UtahUT | 17 | 16,096,851 |
| VirginiaVA | 33 | 40,279,812 |
| U.S. Virgin IslandsVI | 5 | 511,942 |
| VermontVT | 3 | 6,283,716 |
| WashingtonWA | 17 | 8,222,551 |
| WisconsinWI | 4 | 1,116,027 |
| West VirginiaWV | 8 | 13,169,954 |
| WyomingWY | 10 | 8,741,968 |
Total source-record state listings: 646 (multi-state records count once per state they cross). This is not the official NPS census of 433 managed system units.
Methodology
Visit counts are official "Recreation Visits" from the NPS Visitor Use Statistics Data Package, 2025. The five-year average column averages 2021-2025 to reduce single-year noise; the latest-year column shows the most recent complete calendar year. Some NPS units publish other statistic types (Tent Campers, Recreation Visit Hours) that are not used here. Independent site, not affiliated with the National Park Service. Rows come from the combined NPS metadata and Visitor Use Statistics registry, not the official 433-unit census. State assignment comes from the NPS Data API's states field. Records that span multiple states are listed under each state they cover; the total above counts each record once per state.
Independent site. Not affiliated with or endorsed by the National Park Service. Data comes from the official NPS Visitor Use Statistics Data Package, 2025; editorial analysis is ours. The NPS Arrowhead and other NPS marks are not used.