ZIP 78664 Insurance Data
Round Rock, Texas · Williamson County · 1,232 policies
Data Snapshot: ZIP 78664 (Round Rock, TX)
ZIP 78664 (Round Rock, TX) shows an average homeowners insurance premium of $1,907 per year as of 2022, based on U.S. Treasury FIO ZIP-level observations across approximately 1,232 reported policies. That is 7% above the national average of $1,776 per year, placing this ZIP in the 71th percentile nationally. Compared to the Texas state average of $2,349, this ZIP runs 19% below, reflecting neighborhood-level differences in catastrophe exposure, property age, and claims history.
The loss ratio for ZIP 78664 is 201.6%, meaning insurers paid out more in claims than they collected — a signal that premiums may rise or carriers may exit. Claim frequency — the share of policies with at least one claim — is 16.59%, and the average claim severity (amount paid per claim) is $23,175.
Across 5 years (2018–2022), premiums in ZIP 78664 have risen by 13.3%, ranging from $1,683 to $1,907 with a five-year average of $1,781 — an annualized rate of +3.2% per year. FIO data aggregates voluntary reporting from the 40 largest homeowners insurers, covering roughly 80% of the U.S. market, so figures represent market averages rather than individual policy quotes; your own premium will vary with dwelling value, deductible, coverage limits, construction type, and insurer-specific underwriting. This page is educational research only and is not insurance advice — homeowners should request quotes from multiple licensed carriers or an independent agent before purchasing or renewing coverage.
How ZIP 78664 Compares
Premium History
| Year | Avg Premium | YoY Change |
|---|---|---|
| 2018 | $1,683 | — |
| 2019 | $1,731 | +2.9% |
| 2020 | $1,766 | +2.0% |
| 2021 | $1,818 | +3.0% |
| 2022 | $1,907 | +4.9% |
5-Year Trend Summary
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Related Data
Source: U.S. Department of the Treasury, Federal Insurance Office (FIO) Homeowners Insurance Data (2018-2022). Premiums are ZIP-level averages and may not reflect individual policy costs U.S. Department of the Treasury, Federal Insurance Office (FIO) Homeowners Insurance Data (2018-2022). Premiums are ZIP-level averages and may not reflect individual policy costs
Frequently Asked Questions
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Read our methodology — how this data is sourced, computed, and verified.