Jacksonville or St. Johns County? Why Buying Across the County Line Can Change Your Homeownership Budget
July 22, 2026
3 Mintues
Northeast Florida homebuyers usually narrow their search to two neighbors: Duval County (Jacksonville) and St. Johns County. They sit side by side, share the same coastline, and belong to the same metro - but crossing that county line can reshape your monthly budget more than any renovation or rate lock.
The July 2026 Snapshot
| Metric | Duval County (Jacksonville) | St. Johns County |
|---|---|---|
| Median home price | $305,000–$330,000 | $513,000–$600,000 |
| Typical days on market | 50–60 days | 30–55 days |
| Effective property tax rate | ~1.15%–1.2% | ~0.93%–0.95% |
| CDD fees | Rare (a few pockets, e.g. eTown) | Common in master-planned communities |
| Avg. insurance premium | $2,800–$3,800+/yr | $2,800–$3,800+/yr (lower in newer builds) |
The Property Tax Paradox
St. Johns' lower rate doesn't mean a lower bill - its home values are high enough to erase the discount:
- $330,000 Duval home at ~1.18% effective rate → ~$3,900/year
- $550,000 St. Johns home at ~0.94% effective rate → ~$5,170/year
2026 wildcard: Florida voters decide a constitutional amendment (HJR 1-F) on the November 3, 2026 ballot. If it passes with 60% approval, the homestead exemption for non-school taxes rises to $150,000 in 2027 and $250,000 in 2028. Buyers who establish residency before January 1, 2027 benefit soonest - those moving in after face a five-year wait.
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CDD Fees: St. Johns' Hidden Line Item
- Nocatee, SilverLeaf, and Shearwater all carry Community Development District (CDD) fees on top of HOA dues
- Typically adds $1,000–$3,500+ per year to fund roads, pools, and amenities
- Duval has a few CDD pockets (like eTown), but most established neighborhoods run standard, lower-cost HOAs only
Insurance: Age of Housing Stock Matters
- Duval: older stock in established areas like Riverside and San Marco can mean flood-zone reviews and roof-age requirements
- St. Johns: newer construction often qualifies for hurricane-code discounts
- Exception: coastal pockets like Ponte Vedra Beach carry higher premiums regardless of build year
Which County Fits Your Budget?
Choose Jacksonville (Duval) if you want:
- A lower entry price
- Established neighborhoods without CDD fees - see our guide to Jacksonville's best suburbs for options
- Total monthly carrying cost closer to $1,700–$2,000
Choose St. Johns County if you want:
- Newer construction in an amenity-rich community
- Highly rated public schools
- A budget that comfortably supports $2,300+/month
Either way, running the full math - price, taxes, CDD fees, insurance, and the pending ballot measure - before you make an offer tells you more about your true monthly cost than the county line ever will.
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Article by
Rocky Billore is a mortgage industry leader and Chief Sales Officer with over two decades of experience across residential and commercial lending. Since entering the industry in 2004, he has been directly involved in funding more than $1.4 billion in loans. A recognized expert in VA and government lending, Rocky combines deep program knowledge with a data driven, relationship-first leadership style. His work focuses on building scalable sales organizations, developing high performing teams, and aligning technology with real world lending outcomes to improve the homeownership experience.