At least 10 houses in the Omaha area, though several have closed within the last 10 years. During the spring, you can usually find about one tournament a weekend. One scratch league (annual draft), travel league, and a robust youth bowling environment. You can see high school finals on TV here. There is a local bowling newspaper (Nebraska Bowler). Three pro shops that I know of...
I was just going to mention Omaha, as that's my hometown. With Scott Sedlak closing Kelley's Hilltop (he was a year behind me in high school), that still leaves more alleys in the entire Omaha metro area than all of Sacramento and its suburbs. Plus with UNL 60 miles away, Midland 30 miles away, and UNO wanting to start up another program, there's plenty of life there.
The Omaha World Herald (local newspaper) just put together a photo of the timeline of the Crossroads shopping mall, from inception to current status, and one of the photos they have is from 1955, where there is nothing but a dirt lot across the street with a small building there, for West Lanes Bowlatorium. The mall hadn't been built yet, but that bowling alley is still there.
At its peak, there were 22 alleys open in the metro area, and that includes the 2 in Council Bluffs. I can only count 10 that have closed and that's going back to when I was a kid, with the earliest of them closing in 1991: Ames, King Louie's Rose Bowl, Kelley's Hilltop, Leisure Lanes, Sky Lanes, Wildcat, Cougar, Gateway, Gretna, and one in Council Bluffs that was on Broadway. Valley View (now Thunderbowl) is still there.
Plus with those 3 big pro shops (all run by PBA members, one of which was in my graduating class and bowled youth and collegiates with), then add in Erin McCarthy (who just won her first PWBA title after representing the US at the QubicaAMF World Cup) there's a HUGE scene in Omaha. Always has been.
BL.