Clark County Jail

Inmate mail Effective August 16, 2021, the Clark County Jail will only accept personal mail for inmates in the form of a white prepaid postage postcards. These can be purchased through the post office. The post cards should be addressed to: Inmate Name Clark County Jail 120 N. Fountain Ave Springfield Ohio 45502 All other forms of mail will be returned to sender. All legal mail will be permitted in envelopes from courts, attorney or law firm (subject to verification).