Speed Limits and Control

speed limit When driving in a school zone

School zones in Indiana require slowing to 20 MPH to ensure child safety. Speeds are strictly enforced, especially during pickup and drop-off times.

speed limit If you are driving in residential neighborhoods

Indiana law sets 25 MPH as the standard for residential areas. This helps protect pedestrians, children, and pets in dense living zones.

speed limit When traveling on rural interstate highways

Rural interstates in Indiana allow speeds of up to 70 MPH for cars under good conditions. Commercial trucks may be limited to 65 MPH.

speed limit When using urban interstates or expressways

Urban interstates have slightly reduced speed limits due to congestion and exit frequency. Expect to drive around 65 MPH unless posted otherwise.

If you’re driving on rural state highways

Most undivided rural highways have a 55 MPH limit in Indiana. Adjust speed for curves, weather, and visibility.

When traveling in an alleyway

Indiana limits alleyway speed to 15 MPH due to tight turns and limited sight lines. Always expect hidden driveways and pedestrian crossings.

If you’re driving through a business district

Business zones typically have more signals, crossings, and parked cars. The 25 MPH limit ensures drivers can react safely.

When approaching or passing through a work zone

Work zones often reduce limits by 10–20 MPH. Penalties are higher, and workers may be present even if traffic seems clear.

If entering a bridge or narrow underpass

Speed may be restricted to maintain structural safety or accommodate tight width. Always obey posted signs near these structures.

When road conditions are slippery or visibility is poor

Even if the speed limit is 55 MPH, drivers must go slower in poor conditions to remain in control and avoid crashes.

If you’re driving in a park zone or recreation area

Areas with playgrounds or trails may have reduced speed limits to protect children and pedestrians. Follow local signage.

When nearing a pedestrian-heavy intersection

Intersections with heavy foot traffic may require you to slow to 15to25 MPH depending on signage and visibility.

If driving on a rural county road

Rural county roads may lack signage but typically default to 55 MPH under state law. Conditions may require slower speeds.

When entering a roundabout

Indiana drivers should slow to 15to25 MPH when entering a roundabout. Yielding to circulating traffic is mandatory.

If signs are absent but you’re in a mixed-use urban area

In the absence of signage, use judgment. A speed of 30 MPH is typically safe for shared-use zones like older neighborhoods or city outskirts.