A tab a month in a county of 30,000?

The newspaper I am at now is a weekly in a city of 7,500 and county of about 30,000; it’s the only paper in the county and is not part of a local “group.” I don’t know for sure if that’s too much, to do a tab every month, or I just don’t want that much work, but I think that’s probably a bit heavy. A tab every 6-7 weeks, on average, is probably more realistic.