Two hundred people lived in Brandon, South Dakota in 1950. Today the number sits past 11,000, and almost the entire gap between those two figures traces back to a single piece of infrastructure: Interstate 90. Car insurance here has to account for a town that functions less like a standalone farm community and more like a Sioux Falls suburb that happens to have its own city limits.

That distinction matters because Brandon's driving patterns don't look like a typical small South Dakota town's. A large share of residents leave the city every weekday morning and come back every evening, and insurers price mileage and highway exposure into a quote whether or not the town itself feels small.

Brandon follows South Dakota's 25/50/25 minimum: $25,000 bodily injury per person, $50,000 per accident, $25,000 property damage, with uninsured motorist coverage included by default. Tort state, PIP optional. Statewide averages run near $383/yr minimum coverage, $1,269/yr full coverage.

From 200 People to a City of 11,000

Brandon's population history reads almost like a chart of interstate construction itself: about 200 residents in 1950, 696 by 1960, 1,431 by 1970, and a steady climb from there to more than 11,000 at the 2020 census. A post office has operated in Brandon since 1878, but the town spent nearly a century as a tiny rural stop before the growth curve bent sharply upward.

None of that growth happened by accident. It lines up almost exactly with the decades when I-90 made living in Brandon and working in Sioux Falls a realistic daily routine instead of a long drive on two-lane roads.

Five Miles From Sioux Falls, A Different Market

Brandon sits roughly five miles east of the Sioux Falls city line, close enough that the two economies blend together in daily life but far enough that Brandon keeps its own city government, school district, and claims history. Insurers treat the two as separate rating areas even though a huge share of Brandon residents spend their workday inside Sioux Falls.

That split matters for pricing. A Brandon quote isn't automatically the same as a Sioux Falls quote just because the drive between them takes about ten minutes on I-90.

The Twice-Daily Commute Insurers Price For

Median age in Brandon sits around 35, and roughly a third of residents are under 18 — numbers that point toward a lot of working-age parents making the same commute every day. That commute runs mostly on I-90, a fast-moving corridor that carries heavy truck traffic between Sioux Falls and the Minnesota state line.

More daily highway miles generally means more exposure to a claim over the course of a year, which is part of why a Brandon commuter's mileage tends to get more scrutiny on a quote than a driver who rarely leaves a small town's own streets.

A High Homeownership Town

Close to 79% of Brandon residents own rather than rent, a notably high share for a city this size. That makes Brandon a market where bundling a home and auto policy is worth checking specifically, since the discount only applies to homeowners in the first place and most of the town qualifies.

It's a small detail, but in a town built almost entirely around families settling down rather than renters passing through, it's one that actually shows up in a lot of local quotes.

What a Brandon Quote Should Account For

  • Factor in the daily I-90 commute — more highway mileage than a typical small South Dakota town carries.
  • Don't assume a Sioux Falls quote applies here — Brandon is rated as its own city despite the short drive between them.
  • Ask about a home-and-auto bundle given how high Brandon's homeownership rate runs compared to the state average.
Moving to Brandon or comparing a Sioux Falls quote against a local one? Our guide to comparing car insurance quotes walks through what actually changes the number.