How Many CRC Churches Still Teach Catechism?

1st CRC of Artesia, CA teaches it year-round, open to all. We have Adult Sunday School class then Catechism class every Sunday. 

Hey Stefan! I currently teach Catechism every other year for our high school students. Grades 9-10 study the Heidelberg in the fall and Grades 11-12 study the Belgic Confession in the winter. Each 'course' is seven weeks. 
We've done some other adult education on the B.C. and Canons of Dort as more special interest evenings. 

At Coopersville CRC, we have Catechism classes during the school year for grades 5 - 12, and Summer classes for those 3 yrs. old through 4th grade. For the adults, our church has the Three Forms Podcast that we are producing, where we have gone through the Heidelberg Catechism and Belgic Confession, and are just starting through the Canons of Dort.

Here at Aylmer Christian Reformed Church we have six years of Catechism instruction. Grades 7-8 are our junior group. Grades 9-10 are intermediate. Grades 11-12 are the senior group. There is one teacher for each group and they are free to find and customize their own material under the supervision of the pastoral elders. I teach the senior group with material which I have made myself over the years that looks closely at the three forms of unity.

At Vanastra Community CRC in southwestern Ontario, Catechism is taught by one of four elders, we are currently vacant, weekly after the service for about 20 minutes during coffee time. This runs from October through May with breaks during the holidays. Grades 6-9, I believe.