Custom Merch for Nonprofits in Irvine, CA
Merch Mob makes fundraising tees and hoodies, volunteer shirts, and walk, run and ride shirts for nonprofits in Irvine, CA, at its shop in Montclair, CA, and ships them to Irvine. A median age of 34.0, against 38.9 for the US (Census ACS, 2020-2024), puts Irvine on the younger side, so offer the tee in a modern fit and add a hoodie as the higher-priced item younger supporters will buy.

Irvine by the numbers
Irvine has 318,764 residents, up 3.6% since 2020 (Census estimates).
Orange County has 109 civic and social organizations with paid employees (Census County Business Patterns, 2023). That is 0.35 for every 10,000 residents, below the national figure of 0.72. 75% of them employ fewer than 10 people. The count is down 11% from 122 in 2018.
That Census category covers clubs, fraternal lodges, alumni groups and similar associations; many charities are counted in other categories.
Orange County as a whole has 3,149,507 residents, down 1.2% since 2020. Orange County has one civic or social organization for every 28,890 residents.
- Population, 2025
- 318,764
- Since 2020
- +3.6%
- County
- Orange County
- Civic and social organizations in Orange County, 2023
- 109
- Per 10,000 county residents
- 0.35 (US 0.72)
- Time zone
- Pacific
- Median age
- 34.0 (US 38.9)
- 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 nonprofits
Irvine gets about 35 days a year at 90°F or more, so a summer walk should start early, while the rest of the year suits an outdoor event at almost any hour. Winter nights fall to an average low of 43°F in December, so an early setup or an evening event in winter calls for a hoodie, which doubles as a year-end donor gift. Tees carry most volunteer days here: 10 months average a high of 70°F or more (March to December), and a long sleeve covers the rest. Rain dates are seldom needed with about 14 inches of rain in a typical year, so sun is the thing to plan for: add a cap to the volunteer kit.
| Month in Irvine | Average high | Average low | Rain (in) | What volunteers and supporters wear |
|---|---|---|---|---|
| January | 68°F | 43°F | 3.1 | Long-sleeve race shirts |
| February | 69°F | 45°F | 3.4 | Long-sleeve race shirts |
| March | 72°F | 48°F | 2.1 | Walk tees and volunteer shirts |
| April | 74°F | 50°F | 0.8 | Walk tees and volunteer shirts |
| May | 77°F | 55°F | 0.3 | Walk tees and volunteer shirts |
| June | 80°F | 58°F | 0.1 | Walk tees and volunteer shirts |
| July | 85°F | 61°F | 0 | Wicking race shirts and volunteer tees |
| August | 87°F | 63°F | 0 | Wicking race shirts and volunteer tees |
| September | 87°F | 61°F | 0.2 | Wicking race shirts and volunteer tees |
| October | 84°F | 55°F | 0.7 | Walk tees and volunteer shirts |
| November | 76°F | 47°F | 1.2 | Walk tees and volunteer shirts |
| December | 70°F | 43°F | 2.3 | Walk tees and volunteer shirts |
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
Which participant shirt suits a charity walk or run in Irvine?
Short sleeves for most dates, since the average high never drops under 65°F; for a race in the weeks around August, the warmest month, start early and pick moisture-wicking fabric.
More for Irvine
Let’s build
your next drop.
Tell us what your nonprofit needs. You get a line-item quote and an honest timeline within 24 hours. Tell us where it ships and the quote covers the rest.