Custom Merch for Clothing Brands in Irvine, CA
Merch Mob makes first drop tees, heavyweight and boxy staples, and hoodies and crewnecks for clothing brands in Irvine, CA, at its shop in Montclair, CA, and ships them to Irvine. At 30%, the share of people aged 18 to 34 in Irvine beats the national 23% (Census ACS, 2020-2024), which gives a local pop-up or a city-themed capsule a real audience for oversized cuts and graphic tees.

Irvine by the numbers
Irvine has 318,764 residents, up 3.6% since 2020 (Census estimates).
Orange County has 957 clothing stores with paid employees (Census County Business Patterns, 2023). That is 3.0 for every 10,000 residents, above the national figure of 2.4. 55% of them employ fewer than 10 people. The count is down 12% from 1,085 in 2018.
It also has 154 apparel manufacturing establishments with paid employees. That is 0.49 for every 10,000 residents, above the national figure of 0.13. 75% of them employ fewer than 10 people. The count is down 26% from 209 in 2018.
Both are broad Census categories: they count every clothing store and apparel factory with a payroll, not independent labels, most of which sell online with no employees.
Orange County as a whole has 3,149,507 residents, down 1.2% since 2020. Orange County has one clothing store for every 3,290 residents.
- Population, 2025
- 318,764
- Since 2020
- +3.6%
- County
- Orange County
- Clothing stores in Orange County, 2023
- 957
- Per 10,000 county residents
- 3.0 (US 2.4)
- Apparel manufacturing establishments in Orange County, 2023
- 154
- Per 10,000 county residents
- 0.49 (US 0.13)
- Time zone
- Pacific
- Median age
- 34.0 (US 38.9)
- Residents aged 18 to 34
- 30% (US 23%)
- Warmest month, average high
- August, 87°F
- Coldest month, average low
- December, 43°F
- Days at 90°F or hotter, a year
- 35
- Nights at 32°F or colder, a year
- 2
- Rain, a year
- 14 in
- USPS zone from the shop
- 1
Weather: Tustin Irvine Ranch station, 2 mi from Irvine's center (NOAA 1991-2020 Climate Normals). People: Census ACS 2020-2024. Counts: CBP 2023, by county, paid-employee establishments. Population: Census, July 2025.
What Irvine's weather means for clothing brands
August averages a high of 87°F in Irvine, with about 35 days a year at 90°F or more, so add shorts and a lighter tee to the late-summer drop alongside the year-round staples. December lows of about 43°F keep a lightweight hoodie wearable, and the weeks before Black Friday are the main window for fleece and gift-ready pieces. Average highs stay at 70°F or more from spring well into fall, so shorts, tanks and tees get a long season, and a second summer drop has room to sell. With rain this light, about 14 inches a year, an outdoor pop-up is a realistic launch plan; bring a canopy, since direct sun fades dark colorways left on a display rack.
| Month in Irvine | Average high | Average low | Rain (in) | What the drop should feature |
|---|---|---|---|---|
| January | 68°F | 43°F | 3.1 | Boxy tees and light crewnecks |
| February | 69°F | 45°F | 3.4 | Boxy tees and light crewnecks |
| March | 72°F | 48°F | 2.1 | Graphic tees and caps |
| April | 74°F | 50°F | 0.8 | Graphic tees and caps |
| May | 77°F | 55°F | 0.3 | Graphic tees and caps |
| June | 80°F | 58°F | 0.1 | Graphic tees and caps |
| July | 85°F | 61°F | 0 | Lighter tees, tanks and shorts |
| August | 87°F | 63°F | 0 | Lighter tees, tanks and shorts |
| September | 87°F | 61°F | 0.2 | Lighter tees, tanks and shorts |
| October | 84°F | 55°F | 0.7 | Graphic tees and caps |
| November | 76°F | 47°F | 1.2 | Graphic tees and caps |
| December | 70°F | 43°F | 2.3 | Graphic tees and caps |
Made in So Cal, shipped to Irvine.
Irvine shares the shop's Southern California region; orders ship from there.
Irvine is about 27 miles from Merch Mob's shop in Montclair, CA, a straight-line distance. From the shop's ZIP code, Irvine is USPS zone 1. Irvine shares the shop's Pacific time zone.
From the production floor
Merch Mob production in Southern California.




Ordering from Irvine
When should a clothing brand in Irvine drop fleece?
In the fall, as a layer for cool nights rather than cold days: no month averages a high under 65°F, so one light fleece drop before the holidays covers evening wear and gift buying.
More for Irvine
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