Custom Merch for Nonprofits in Port St. Lucie, FL
Merch Mob makes fundraising tees and hoodies, volunteer shirts, and walk, run and ride shirts for nonprofits in Port St. Lucie, FL, at its shop in Montclair, CA, and ships them to Port St. Lucie. With half of residents older than 43.9, against a US median of 38.9 (Census ACS, 2020-2024), Port St. Lucie leans older, so a soft, classic-fit tee and an embroidered cap will reach more supporters than a trendy cut.

Port St. Lucie by the numbers
Port St. Lucie has grown to 268,062 residents, up 30.9% since 2020 (Census estimates). That is the fastest growth among the 62 Florida cities and towns with 50,000 or more people.
St. Lucie County has 11 civic and social organizations with paid employees (Census County Business Patterns, 2023). That is 0.27 for every 10,000 residents, below the national figure of 0.72. Every one of them employs fewer than 10 people.
That Census category covers clubs, fraternal lodges, alumni groups and similar associations; many charities are counted in other categories.
St. Lucie County as a whole has 402,449 residents, up 22.2% since 2020. St. Lucie County has one civic or social organization for every 36,590 residents.
- Population, 2025
- 268,062
- Since 2020
- +30.9%
- County
- St. Lucie County
- Civic and social organizations in St. Lucie County, 2023
- 11
- Per 10,000 county residents
- 0.27 (US 0.72)
- Time zone
- Eastern
- Median age
- 43.9 (US 38.9)
- Warmest month, average high
- July, 91°F
- Coldest month, average low
- January, 56°F
- Days at 90°F or hotter, a year
- 81
- Nights at 32°F or colder, a year
- 0
- Rain, a year
- 63 in
- USPS zone from the shop
- 8
Weather: Stuart station, 11 mi from Port St. Lucie'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 Port St. Lucie's weather means for nonprofits
About 81 days a year reach 90°F in Port St. Lucie, so volunteer and participant shirts should be light, loose and quick-drying, and a summer event should start early. Winter is the comfortable season: January averages a high of 74°F, which makes it the month for the big outdoor walk, and a tee is still the right participant shirt. With January lows averaging 56°F, a crewneck or quarter-zip is the warmest donor gift that makes sense, and only for the coolest few weeks. August averages about 8.5 inches of rain, more than enough to soak an outdoor event, so keep the walk or run out of that month and have a covered spot ready for volunteers.
| Month in Port St. Lucie | Average high | Average low | Rain (in) | What volunteers and supporters wear |
|---|---|---|---|---|
| January | 74°F | 56°F | 3 | Walk tees and volunteer shirts |
| February | 76°F | 59°F | 2.6 | Walk tees and volunteer shirts |
| March | 78°F | 61°F | 3.8 | Walk tees and volunteer shirts |
| April | 82°F | 67°F | 3.6 | Walk tees and volunteer shirts |
| May | 86°F | 71°F | 5.7 | Wicking race shirts and volunteer tees |
| June | 89°F | 74°F | 7.4 | Wicking race shirts and volunteer tees |
| July | 91°F | 76°F | 6.1 | Wicking race shirts and volunteer tees |
| August | 91°F | 76°F | 8.5 | Wicking race shirts and volunteer tees |
| September | 89°F | 75°F | 8.3 | Wicking race shirts and volunteer tees |
| October | 85°F | 72°F | 6.5 | Wicking race shirts and volunteer tees |
| November | 80°F | 65°F | 4.2 | Walk tees and volunteer shirts |
| December | 76°F | 60°F | 3.2 | Walk tees and volunteer shirts |
Made in So Cal, shipped to Port St. Lucie.
Orders ship to Port St. Lucie from the shop; there is no office or pickup point in Florida.
Port St. Lucie is about 2,253 miles from Merch Mob's shop in Montclair, CA, a straight-line distance. From the shop's ZIP code, Port St. Lucie is USPS zone 8. Port St. Lucie is on Eastern time, 3 hours ahead of the shop's Pacific time.
From the production floor
Merch Mob production in Southern California.




Ordering from Port St. Lucie
Which participant shirt suits a charity walk or run in Port St. Lucie?
Short sleeves on any date, since no month's average high falls below 70°F. For a race in the hottest months, a moisture-wicking shirt and a sunrise start help most.
More for Port St. Lucie
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