ZIP Code 06840 — New Canaan CDP, CT Demographics & Data

ZIP code 06840 covers New Canaan, CT in Fairfield County with a population of about 20,704.

At a glance, the area shows median age of 42.5 versus a U.S. median of about 38.9.

It sits in telephone area codes 203, 475; U.S. House district CT-4; the NEW YORK media market.

New Canaan, CT aligns with a tech / corporate-campus profile (high remote-work / education / income profile or known campus context). Broadband quality, remote-work share, and nearby employer campuses often matter as much as classic residential stats.

Median household income in ZIP 06840 is about $250,001 — about 233% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 3.3%; unemployment rate near 4.8%; 82.8% of adults with a bachelor’s degree or higher (about 49.1 points above the national share (33.7%)).

Labor and commute patterns include leading industry context around Finance and insurance, Professional services, and Healthcare; about 31.1% of workers reporting work-from-home (about 15.9 points above the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Median home value is about $1,534,100 — about 341% above the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $3,409 (about 193% above the U.S. median rent ($1,163)), and owner-occupancy near 83.6% (about 18.2 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 06840 in New Canaan, CT, a household would need roughly $422,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $9,855. That is about 69% above the local median household income ($250,001), so the median earner would likely stretch or need a larger down payment. Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

Climate normals for New Canaan CDP, CT show little to no average snow and around 51.6 inches of annual precipitation.

IRS migration statistics show a net inflow of about 1,143 for ZIP 06840 (New Canaan CDP, CT) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.