on the county line, the road heads east, first as 421st Avenue Northeast (Kanabec CR 4), then as 421st Avenue Northeast (Isanti CR 4), and then through Braham as 6th Avenue Northwest (Isanti CR 4). County Road 4 heads south on Main Street for , concurrently with State Highway 107 (MN 107), then heads east to the county line on 8th Street Southeast, which becomes 413th Avenue Northeast upon leaving Braham. The road continues eastward as North Lake Drive (Chisago CR 2). County Road 5 is a county route serving Spencer Brook Township, Oxlip, Bradford Township, Isanti, Isanti Township, Blomford and North Branch Township. The route begins as a continuation of 140th Street (Sherburne CR 2), heads east on 313th Avenue Northwest, heads south on Dolphin Street, then east on 293rd Avenue Northwest, where for the rest of the route maintains concurrency with Inter-county H. The route briefly heads south on Palm Street Northwest (CR 10), heads east on 289th Avenue Northwest through Isanti, and continues east on 293rd Avenue Northeast to the county line. The route continues eastward as Isanti Trail (Chisago CR 13). County Road 6 is a county route serving Wyanett Township, Springvale Township, Springvale, Cambridge Township and Grandy. The route begins as a continuation of 60th Street (Mille Lacs CR 13) at its intersection with Jarvis Street Northwest (Isanti CR 13), generally heads east, briefly heads north concurrently with State Highway 47 (MN 47), continues to head east through Springvale and Grandy, briefly heads south concurrently with State Highway 65 (MN 65), then continues to head east to the county line. The route continues eastward as Rush Point Drive (Chisago CR 7). County Road 7 is a county route serving Stanford Township, Crown, Spencer Brook Township, Spencer Brook and Wyanett Township. Roughly paralleling State Highway 47 (MN 47), the route begins as a continuation of Nacre Street Northwest (Anoka CR 28), heads north to 261st Avenue Northwest (CR 8), briefly heads west into Crown, then generally heads north through Spencer Brook to its terminus at the intersection of Helium Street Northwest (CR 7 / CR 57) and State Highway 95 (MN 95). The road continues north as Helium Street Northwest (CR 57) and eventually as Highway 47. County Road 8 is a county route serving Stanford Township and Crown. The route begins as a continuation of 260th Avenue (Sherburne CR 4), heads east on 261st Avenue