$107,068. That's the median household income in Mount Juliet, Tennessee — about 25% above the Nashville metro average and among the highest of any city in the state. Car insurance in Mount Juliet, TN averages $126 a month for full coverage. That second number should, by most logic, be higher than it is.

It isn't. Full coverage here runs about $1,513 a year, according to InsuranceCostin's 2026 data, versus $1,700 for Tennessee as a whole. A city with a median home value near $510,000 is paying below-average premiums on the cars parked in those driveways.

Mount Juliet averages: $1,513/yr ($126/mo) for full coverage — below Tennessee's $1,700/yr average. Liability-only state minimum runs about $832/yr. State minimum: 25/50/25 liability, at-fault (tort) rules apply.

The Wealth-vs-Rate Mismatch, Explained

Insurance companies don't price policies off your income or your home's Zestimate. They price off risk: how often drivers in your ZIP code file claims, how many of your neighbors are driving uninsured, how bad the intersections are, and how expensive it is to fix or replace the cars that actually get hit.

Wilson County, where Mount Juliet sits, is one of Tennessee's wealthiest counties by median income — but it's also a newer, master-planned suburb with wide roads, modern signal timing, and lower crime than older urban cores. That combination tends to keep claims frequency down even when the vehicles being insured are newer and pricier.

What Coverage Actually Costs Here

  • Liability only (25/50/25 minimum): around $832/yr, the cheapest legal option and the one with the least protection if you cause a serious crash.
  • Full coverage (100/300/100): around $1,513/yr, the InsuranceCostin baseline used throughout this page.
  • Higher-limit coverage (250/500/250): around $1,966/yr, worth considering given the six-figure home values and newer vehicles common in Mount Juliet.

That spread matters more here than in a lot of Tennessee cities. If you total someone else's $60,000 truck with a state-minimum policy, $25,000 in property damage coverage doesn't come close to covering it — and Mount Juliet has plenty of $60,000 trucks.

Why the Roads Are Getting More Crowded

Mount Juliet grew from about 23,671 residents in 2010 to more than 40,000 today, and most of that traffic funnels through Providence Marketplace, the retail center that anchors the city's I-40 corridor and draws shoppers from well outside city limits. South Mt. Juliet Road backs up regularly near the marketplace, and TDOT has a Central Pike interchange project planned off I-40 to help absorb the volume.

None of that has pushed the city's average premium above the state number yet. But rate filings tend to lag traffic growth by a year or two, not lead it — worth keeping in mind if you're assuming today's quote will still be accurate at your next renewal.

What to Check Before You Renew

If you're insuring a newer vehicle in Mount Juliet, the state-minimum 25/50/25 policy is usually the wrong call — the math on a $50,000+ vehicle just doesn't work with $25,000 in property damage coverage. Our minimum vs. full coverage guide walks through the gap in plain terms.

  • Raise your property damage limit: the state 25/50/25 floor is outdated for a city with this many newer, pricier vehicles.
  • Match UM/UIM to your own limits: Tennessee's statewide uninsured-driver rate is around 21%, regardless of how affluent your own ZIP code is.
  • Re-shop before each renewal: rates here are still below state average, but that gap can close as traffic near I-40 and Providence Marketplace keeps building.
Involved in a crash on South Mt. Juliet Road or near the Providence Marketplace interchange? Our accident claims guide covers what to do next under Tennessee's at-fault rules.

Car insurance in Mount Juliet, TN is cheaper than you'd expect for a city this affluent — for now. The income and home values keep climbing, the roads keep filling in, and the smart move is checking your coverage against your actual assets rather than assuming last year's quote still fits.