I wonder if we will see a saturation of religious/teaching stations at some point or will they just continue to multiply, each with a slightly different philosophy? Is there a fixed pool of people willing to support them?
Let's take a look at Denver.
89.7 - KXGR - "Grace FM", Calvary Chapel - a rimshot but easily received in Denver itself
91.1 - KLDV - K-Love +2 HD channels (rebroadcast at 103.9 and 98.1 respectively)
94.7 - KRKS-FM, Salem, preaching
95.1 + KLTT 670 - Crawford, preaching
98.1 - KLOVE 2000s translator (counted with KLDV-HD3) (this may be temporary)
101.1 HD-2 - KOSI-HD2, The Saints Channel, LDS
101.5 - KSRC, Star FM, Pillar of Fire
101.9 - KXWA, Way FM +HD-2 La Vida Unida (counting as 2 program sources)
102.7 + KPOF 910 - Pillar of Fire
103.9 - Air1 translator (counted with KLDV-HD2)
106.3 - "The Light", translator for KTLF Colorado Springs, also at 90.5 (counting both together as one source)
107.1 - KFCO, "Flo", Pillar of Fire
1060 - KRCN, Catholic Radio Network - kind of a rimshot, from Longmont
1120 - KCRN, Catholic Radio Network - rimshot from Limon
1220 - KLDC, Crawford, preaching
1340 - KDCO, El Sembrador Ministries, in Spanish
1510 - KPLS, Radio 74, Seventh-Day Adventist - currently off the air
1650 - KBJD, Salem, preaching
1690 - KDMT, Relevant Radio, Roman Catholic
Pillar of Fire, KDCO, and KTLF are local. KPLS is quasi-local.
I count
20 separate programming sources, but the counting gets complex: I counted AM + FM translator combinations as one, and counted translator/HD subchannel combinations as one, but counted the two Catholic Radio Network stations as separate due to the distance between them.
That seems rather a lot, no matter how you count.