Johnston county detention center phone number To locate an inmate currently housed in the Johnston County Detention Center in Smithfield, North Carolina, you can use the online inmate search tool provided by the Johnston County Sheriff's Office. Data Last Updated: Monday, May 5, 2025 - 05:05 PM. Feb 15, 2025 ยท The capacity of the detention center, as well as the official contact phone number 580-371-2691 and website, can be found on public records or the official Johnston County detention facility website. Monday through Friday 8:00am - 5:00pm Office Phone: 919-989-5010 Detention Center. 01866. To use the Johnston County Jail. Cell Housing Number. Ferguson's Office: 910-253-2771 Fax: 910-253-2471 Call a bail bond agent to help you get an inmate out of Johnston County jail. General Information: (919) 989-5010. As of July 1, 2023, the county’s population was estimated at 241,955 residents. wenkskpsvxhgvvendwtlzfaoumoxeigylhvkbxxzxkpqhemjuifxquwliinzmifgiwcl