I'm working on an interactive map of US churches

[RI]

I'm attempting to create a map of almost all US churches (not just Christian churches, btw) with rooftop-level precision. I'm somewhat early in the verification process, but I have a huge dataset assembled already. You can see what I have so far here, with the caveat that it's only hand-verified locations, only ~7-8% of churches, the sample is highly non-random, and the pop-up boxes don't work well on Chrome so far.

I'm looking for feedback on what I have so far and on what you would like to see from this. Also, this is a very time-intensive process, but if any one would like to help out, I'm looking for assistance. That could be just verifying/finding churches in your area or denomination or whatever you'd like. My end goal will be to make the final dataset freely available.

[RI]

I've added a bunch of churches to the map where I'm fairly confident in their location, but they haven't been verified. Puts the map up to 92k churches (~25%) and makes it look a bit more representative, although not entirely. The map is now colored such that the dots are red if verified and yellow if unverified, which you can also filter by.

[RI]

I am pretty continuously updating this map with more and more churches, but there are still an absolute ton more to do. Currently 190k churches on the map. The US has an incredible number of churches, and many of them-- and sometimes entire denominations-- are completely off the grid. I'm starting to suspect that official numbers may marked underestimate how many churches there are. Also, Google Maps is pretty bad in certain parts of the country (Bing tends to do better in some rural areas, esp. in the Midwest/Great Plains). If there's a particular area or denomination you'd like to see more work on, let me know, although I can't guarantee anything. Especially let me know if I've missed something major or if you know a good source I've missed.

As far as churches which share a building, I'm either placing only the "primary" church (i.e. the one you'd see a sign for outside the building) or I mark them as an interdenominational church if they are truly joint churches.

[RI]

What do you mean by "verified" churches?

A church being verified means that I have manually checked to make sure that its coordinate is on the rooftop of the correct building.

[RI]

I've spent the last several weeks updating the most difficult state in the country, West Virginia. These updates are now live.

[RI]

I've started adding Canadian churches to the map as well.

[RI]

My free trial of Carto has expired, so the map is no longer up. I'd like to figure out another hosting solution which may facilitate interactive verification, but I'm not really sure what a good option would be. Anyone know any options?