Continuing population loss in rural Iowa results in many fewer school districts

Lost Schools: Another Iowa school gone.  (Des Moines Register, 5/18/2016)

The Corwith-Wesley School, which officially shuttered last year, is the 4,316th Iowa district to close since 1950. Some predict more to come among the state's remaining 336 districts.

Source:  Wikipedia

Related post:
Road trip to Iowa's 99 counties.  (2/1/2015)

Of which 84 of 99 are losing population. 

13 of them more than 50% since their peak.