Which ZIP code in Fairfield County has the highest median household income?

06880 (Westport), at $250,000+, among 46 ZIP codes with at least 1,000 residents.

Why are some ZIP codes missing?

ZIP codes with fewer than 1,000 residents are left out because their survey estimates swing too much to rank, and so are ZIP codes where the Census Bureau did not publish this figure.

Richest ZIP codes in Fairfield County, CT

These are the 25 ZIP codes in Fairfield County with the highest median household income, out of 46 with at least 1,000 residents. 06880 (Westport, $250,000+), 06820 (Darien, $250,000+) and 06840 (New Canaan, $250,000+) lead the list. There is no single "best" ZIP code in Fairfield County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Richest ZIP codes in Fairfield County

Rank	ZIP	Mailing city	Median household income	Residents	Households	Residential mailboxes
1	06880	Westport	$250,000+	27,583	9,785	10,731
2	06820	Darien	$250,000+	21,936	7,234	7,593
3	06840	New Canaan	$250,000+	20,870	7,153	7,492
4	06883	Weston	$250,000+	10,396	3,568	3,614
5	06878	Riverside	$250,000+	8,328	2,686	2,861
6	06870	Old Greenwich	$250,000+	7,864	2,756	2,794
7	06853	Norwalk	$250,000+	3,171	1,250	1,542
8	06897	Wilton	$242,199 ±$15,893	18,777	6,122	6,734
9	06831	Greenwich	$227,159 ±$25,492	15,210	5,382	5,843
10	06612	Easton	$222,604 ±$46,257	7,670	2,539	2,733
11	06890	Southport	$218,841 ±$30,541	4,653	1,791	1,832
12	06903	Stamford	$204,028 ±$21,001	14,010	4,882	—
13	06824	Fairfield	$193,300 ±$12,905	36,716	11,940	12,487
14	06807	Cos Cob	$192,115 ±$28,835	7,650	2,828	2,839
15	06896	Redding	$186,060 ±$14,812	8,779	3,399	3,550
16	06877	Ridgefield	$179,219 ±$12,450	25,110	9,194	9,583
17	06611	Trumbull	$163,073 ±$11,187	37,281	12,153	13,855
18	06482	Sandy Hook	$159,828 ±$17,376	12,000	4,142	4,196
19	06468	Monroe	$157,250 ±$12,323	18,949	6,209	6,978
20	06470	Newtown	$153,238 ±$16,177	15,593	5,433	6,255
21	06804	Brookfield	$148,945 ±$10,684	17,908	6,638	7,521
22	06830	Greenwich	$146,654 ±$19,257	24,880	9,480	10,357
23	06812	New Fairfield	$137,647 ±$13,943	13,584	4,562	5,380
24	06905	Stamford	$136,757 ±$3,575	20,725	8,503	9,046
25	06825	Fairfield	$135,504 ±$12,456	21,982	7,813	8,001

How we ranked them

Ranked by median household income (ACS 5-year estimates, 2020–2024). The Census Bureau caps published medians at $250,000; ZIP codes at the cap are shown as $250,000+ and ordered by population. ZIP codes need at least 1,000 residents to be ranked; 46 of 46 qualify.

Which of these to mail, and why

Higher-income ZIP codes suit offers with a bigger ticket: remodeling, pools, roofing, financial planning, private schools, premium dining. A median describes the middle household, not every door, so the routes inside each ZIP still vary.

The top five ZIP codes on this list hold 30,426 households, on 87 carrier routes with 32,291 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 06880 on the EDDM route map

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Businesses that mail these ZIP codes

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Frequently asked questions

Which ZIP code in Fairfield County has the highest median household income?: 06880 (Westport), at $250,000+, among 46 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by median household income (ACS 5-year estimates, 2020–2024). The Census Bureau caps published medians at $250,000; ZIP codes at the cap are shown as $250,000+ and ordered by population.
Why are some ZIP codes missing?: ZIP codes with fewer than 1,000 residents are left out because their survey estimates swing too much to rank, and so are ZIP codes where the Census Bureau did not publish this figure.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.