Which ZIP code in Imperial County has the fastest population growth?

92257 (Niland), at 68.5%, among 14 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.

Fastest-growing ZIP codes in Imperial County, CA

These are the 14 ZIP codes in Imperial County with the fastest population growth, out of 14 with at least 1,000 residents. 92257 (Niland, 68.5%), 92004 (Borrego Springs, 30.8%) and 92274 (Thermal, 18.6%) lead the list. There is no single "best" ZIP code in Imperial County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Fastest-growing ZIP codes in Imperial County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	92257	Niland	68.5%	2,158	780	194
2	92004	Borrego Springs	30.8%	3,007	1,654	224
3	92274	Thermal	18.6%	18,167	5,734	4,848
4	92251	Imperial	14.5%	27,454	6,760	8,248
5	92227	Brawley	4.1%	28,315	8,209	9,315
6	92283	Winterhaven	2.9%	1,732	627	417
7	92243	El Centro	-2.6%	49,069	14,260	16,601
8	92231	Calexico	-3.6%	38,621	10,081	10,744
9	92249	Heber	-7.0%	7,312	1,815	1,584
10	92233	Calipatria	-9.0%	6,836	1,282	158
11	92250	Holtville	-9.5%	7,830	2,160	2,584
12	92281	Westmorland	-19.6%	2,082	561	—
13	92273	Seeley	-45.8%	1,090	350	—
14	92275	Salton City	-53.7%	1,219	478	—

How we ranked them

Ranked by the change in ACS population estimates between the 2015–2019 and 2020–2024 releases. Both are 5-year averages, and ZIP code areas were redrawn for 2020, so a large change can partly reflect a boundary change. Both periods must have at least 1,000 residents. ZIP codes need at least 1,000 residents to be ranked; 14 of 17 qualify.

Which of these to mail, and why

Growing ZIP codes add households every year, which means new homes, new routes and customers without a go-to provider yet. Check the route map: new subdivisions can appear as new carrier routes.

The top five ZIP codes on this list hold 23,137 households, on 41 carrier routes with 22,829 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 92257 on the EDDM route map

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Frequently asked questions

Which ZIP code in Imperial County has the fastest population growth?: 92257 (Niland), at 68.5%, among 14 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by the change in ACS population estimates between the 2015–2019 and 2020–2024 releases. Both are 5-year averages, and ZIP code areas were redrawn for 2020, so a large change can partly reflect a boundary change. Both periods must have 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.

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