visitation statistics

Visitation statistics measure how many people visit a destination - for the US National Park Service, annual recreation visits per park unit, aggregated by park type, region and state. Datadory's leisure-facilities slice anchors the category on NPS Visitor Use Statistics (IRMA Stats): annual recreation visits from 1904 to the last calendar year across 400+ park units, standardised reporting from 1979 onward, traffic counts from 1985, and visitation-by-state-and-park series from 2017.

Grain is per park unit per year, with monthly detail where reported - roughly 120 years of annual records per unit. Delivery runs through SSRS report viewers with export builders for traffic counts and overnight stays, in HTML, Excel, CSV and PDF forms, tagged as a 'demand-indicator'.

The complementary US National Park Service API covers the inventory side: 474 park units, ~712 visitor centers, hundreds of campgrounds, 627 live alerts and ~3,000 events across 29 documented endpoints, updated daily.

Visitation is the denominator for almost every outdoor-leisure business case - concession demand, staffing, gateway-town revenue, trail investment. A source without the long series cannot separate trend from season: standardized reporting begins only in 1979, so earlier figures are not directly comparable.

Methodology breaks matter when joining eras. Traffic counts arrive only from 1985, and state-and-park splits from 2017 - analyses silently assuming constant methodology across 1904-2026 overstate precision.

Rights are the easy part: IRMA Stats is commercial delivery terms as a US Government work with no registration required for viewing or export. That contrasts with commercial foot-traffic panels sold at premium prices for the same underlying question.

1. Check series depth and comparability. Annual visits back to 1904 is the benchmark, but standardised reporting starts in 1979 - confirm which era your analysis treats as consistent.

1. Confirm the grain. Per-park-unit annual records aggregable by park type, region and state, with monthly detail where reported, supports most planning work; national totals alone do not.

1. Look for the auxiliary counts. Traffic counts from 1985 and overnight-stay exports distinguish visitors from vehicles and day users from campers.

1. Pair inventory with demand. The NPS API's 474 units and ~712 visitor centers give the supply side; visitation gives demand - together they compute per-facility intensity.

1. Verify the license. IRMA Stats is commercial delivery terms and free; only 22.6% of Datadory's 1,744 cataloged datasets update daily, so also confirm the annual publication cadence meets your refresh needs.

These entries cover the frameworks around visitation counts: the capacity assets demand presses against, the public-domain status of the federal series, and the national-accounts view of tourism's economic contribution.