2023 South Dakota Primary and Secondary Road Network

South Dakota road network data from the U.S. Census Bureau's 2023 TIGER/Line database. It includes primary roads, which are divided, limited-access highways, and secondary roads, which are main arteries in the U.S., State, or County Highway systems. The dataset is part of a seamless national file designed to stand alone or be combined for broader coverage.

Use Cases

• Analyze the spatial distribution of primary roads (MTFCC S1100) versus secondary roads (MTFCC S1200) across South Dakota.
• Calculate road density or network connectivity for transportation planning using the linear feature geometry.
• Geocode addresses or perform routing analysis by integrating the street centerline and address range data.

Strengths

• Data originates from the authoritative U.S. Census Bureau Master Address File/TIGER Database (MTDB).
• Features a clear classification system with specific MAF/TIGER Feature Classification Codes (MTFCC) for primary (S1100) and secondary (S1200) roads.
• Part of a seamless national dataset with no overlaps or gaps, ensuring topological consistency.

Limitations

• The dataset is limited to the state of South Dakota and does not provide a national view on its own.
• No quantitative metrics like total road length, row count, or file size are provided in the input.
• Data may not include recent road construction or changes after the 2023 extract date.

Provenance

Source

U.S. Census Bureau, Department of Commerce

Collection Method

Extracted from the Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database.

Time Range

2023

Freshness

Data reflects a 2023 extract, with metadata last updated in August 2025.

Geography

South Dakota, United States