Don't think there's a specific group for singles with kids but there are a variety of "Adult Bible Fellowships" (Sunday school class for adults). You could come and check them out. There's a specific woman's class and lots of things for kids (look at the website - Vacation Bible School is ramping up and, depending on their ages, your kids may really enjoy it).
All are accepted in the kingdom of heaven, those confess Jesus is the Savior.
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