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ZIP Code · CT

ZIP 06840

Pop. 20,870·Fairfield County·1st most expensive ZIP in Connecticut
Median rent (all units)
$8,997/mo
Year-over-Year
Stable
Month-over-Month
+8.5%
vs US Median
+$7,032
Rising (Monthly)
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Most AffordableMost Expensive
ZIP 06840 · $8,997
More expensive than 100% of US ZIP codes · National median $1,965/mo
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Compare your rent to the local median.

Medians by bedroom

Rent by unit size

Studio
$2,410
1 BR
$2,930
2 BR
$3,500
3 BR
$4,230
4 BR+
$5,020
Research median
$3,500/mo

Bedroom estimates are gross rents that include essential utilities (electricity, water, gas, sewer, trash).

Rent trends

12-month history

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Last updated: July 20, 2026

Annual cost
$107,964/yr
At $8,997/mo median
Location
StateCT
CountyFairfield County
Rent Market Meter
Strong Landlord's Market
Renter's MarketBalancedLandlord's Market
Rents are up 0.0% year-over-year. Expect competition, and move quickly to lock in terms.
Based on rent-price momentum (+0.0% YoY, +8.5% MoM), not inventory.
Demographics

Who lives here

ZIP 06840 (New Canaan, CT) is majority owner-occupied, has a large share of families with children, has a median income above the national average, 82.5% of residents hold a bachelor's degree or higher.

Population
20,870
Median income
$250,001
Median age
42.1
Renters
16.3%
Age distribution
26.6%
14.5%
27.3%
16.2%
15.5%
Under 1826.6%
18–3414.5%
35–5427.3%
55–6416.2%
65+15.5%
Gender
47%
53%
Male47%
Female53%
Race & ethnicity
81.8%
White81.8%
Black1.7%
Hispanic6.3%
Asian5.4%
Other4.8%
Education (25+)
82.5%
No HS diploma2%
HS diploma5.4%
Some college10%
Bachelor's+82.5%
Housing tenure
83.7%
16.3%
Owner83.7%
Renter16.3%

Source: U.S. Census Bureau · ACS 2024 5-Year Estimates

2021 vs 2026

How ZIP 06840 in New Canaan, CT has changed in 5 years

Income
$215,297 → $250,001
up 16.1%
Population
20,672 → 20,870
up 1.0%
Renter share
18.7% → 16.3%
-2.4 pts
Bachelor's+
80.2% → 82.5%
+2.3 pts

On the earnings side, the typical household in ZIP 06840 in New Canaan, CT now reports about $250,001, up from $215,297 in 2021. Headcount in the area went from 20,672 to 20,870 between 2021 and 2024, a 1.0% change. About 16.3% of households rent today, against 18.7% in 2021. Educational attainment has shifted as well, with the share of adults holding a bachelor's degree or higher climbed from 80.2% to 82.5%.

Community

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Local insights

Tips for renters in ZIP 06840

About renting in ZIP 06840

Last updated: July 20, 2026

ZIP code 06840 covers New Canaan, CT. The median rent here is $8,997/mo as of July 2026. A 1-bedroom rents for a median of $2,930/mo. A 2-bedroom rents for a median of $3,500/mo.

At 43% of local median household income ($250,001/yr), ZIP 06840 ranks as moderate compared to the national benchmark of 30%. Rent prices have stayed steady over the past year.

FAQ

Frequently asked questions

How much is rent in ZIP code 06840?

As of July 20, 2026, the median monthly rent in ZIP 06840 (New Canaan, CT) is $8,997. This is based on aggregated data from public sources and community submissions.

How does ZIP 06840 rent compare to the US average?

ZIP 06840's median rent of $8,997/mo is $7,032 (358%) above the US national median of $1,965/mo.

How does ZIP 06840 compare to other ZIPs in Connecticut?

ZIP 06840 is one of the pricier ZIP codes in Connecticut, ranking #1 out of 85 ZIPs tracked at $8,997/mo.

How much income do you need to rent in ZIP 06840?

To keep rent at or below 30% of gross income, you would need to earn at least $360,000/year (~$173/hour full-time) to afford the median rent of $8,997/mo in ZIP 06840. The local median household income is $250,001/yr, meaning the typical household falls short of that threshold.

Is rent going up or down in ZIP 06840?

Rent in ZIP 06840 has been relatively stable over the past year, with a 0.0% change year over year as of July 20, 2026.

Is ZIP 06840 an affordable place to rent?

ZIP 06840 is considered stretched for renters. At $8,997/mo, rent takes approximately 43% of the local median household income ($250,001/yr). The standard benchmark is 30%. ZIP 06840 significantly exceeds that threshold, making it challenging for many renters.

What percentage of ZIP 06840 residents rent vs. own?

According to Census data, approximately 16.3% of ZIP 06840 households are renters, while 83.7% are owner-occupied. ZIP 06840 leans toward homeownership, which can mean a smaller rental inventory.

When was rent data for ZIP 06840 last updated?

Rent data for ZIP 06840 reflects July 20, 2026. RentDataNow refreshes all data monthly using public and private datasets.
Income Affordability
43%
STRETCHED

At $8,997/mo, rent takes ~43% of ZIP 06840's median household income ($250,001/yr). The standard benchmark is 30%.

ZIP 06840 43%Benchmark 30%
State income tax3–6.99%
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Schools nearby

Public schools near ZIP 06840 (New Canaan, CT)

Recent submissions

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