12.041
Calculator · Compare · Greenwich vs Darien
Fairfield County · $1.6M house · FY2026
Greenwich vs Darien property tax
The same $1,600,000 house. Darien costs about $3,851.68 more per year than Greenwich at official FY2026 mill rates.
Greenwich mill rate
Darien mill rate
15.48
Spread on $1.6M
$3,851.68
Darien is higher
Effective rates
0.84%
Greenwich · 1.08% Darien
On a $1,600,000 house
Open the live calculator with Greenwich and Darien preselected, or change the price.
| On $1.6M | Greenwich | Darien |
|---|---|---|
| Mill rate | 12.041 | 15.48 |
| Annual tax | $13,485.92 | $17,337.60 |
| Monthly | $1,123.83 | $1,444.80 |
| Effective rate | 0.84% | 1.08% |
| Spread | Lowest | +$3,851.68 / yr |
Buying in Greenwich or Darien? A lender PITI estimate should include about $1,123.83/mo of property tax in Greenwich, or $1,444.80/mo in Darien.
Formula
Connecticut assesses real property at 70% of fair market value. A mill is $1 of tax per $1,000 assessed.
annual tax = (price × 0.70 × mill rate) ÷ 1,000
Greenwich mill rate 12.041 → $13,485.92/year. Darien mill rate 15.48 → $17,337.60/year.