The comparisons.
Each page opens with a side-by-side data table, then two 12-month crowd curves, a month-by-month "which is better when" verdict, and a short answer to the questions people actually ask, like "is Bryce or Zion more crowded?" We add pairs where the question comes up a lot and our data can settle it.
How these comparisons work
Every figure comes from the official NPS Visitor Use Statistics Data Package, 2025. Annual totals are latest-year and five-year averages of Recreation Visits; monthly figures are five-year means. Because the data is monthly, it compares which months are busy at each park, not which days or weekends. We do not rank parks by taste. The comparison tells you when each one is the better-timed choice, and points you to each park's own pages for the full plan.
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.