County Events
4-H events take on a variety of different forms, such as field days, judging, presentation contests, and other educational activities. These educational events:
- Allow members an opportunity to showcase their work and receive feedback.
- Introduce 4-H members to new topics and new skills.
- Reinforce the learning cycle and allow members to apply knowledge gained in 4-H projects.
Find more information:
- County of San Mateo Oversight (COSMO) 4-H Committee
- Presentation Day & Interview Contest
- Life Skills Festival
- San Mateo County Fair
- Jones Gulch 4-H Summer Camp
2025-2026 San Mateo County 4-H Calendar of Events and Deadlines*
*subject to change
| Date | Event | Type |
|---|---|---|
| Feb 16 | Office Closed, Presidents’ Day | County Office/Staff Lead |
| Mar 4 | Mandatory SMC Fair Exhibitor Meeting, 7PM, HMB | Deadline |
| Mar 9 | Mandatory SMC Fair Exhibitor Meeting, 7PM, SMC Events Center | Deadline |
| Mar 6-8 | Camping Conference for 4-H Camp Directors | County Event |
| Mar 21 | Animal Field Day @ CSF 10am-12pm | County Event |
| Mar 23 | COSMO 4-H Meeting, 7 – 8 PM, Zoom | County Event |
| Mar 27 | Office Closed, Cesar Chavez Day | County Office/Staff Lead |
| Mar 28 | Presentation Day @ SMCOE, 10am-2pm | County Event |
| Mar 31 | Last Day to register for Regional Presentation Day | Regional/State Event |
| Apr 5 | Scholarship I application due by 11:59 PM | Deadline |
| Apr 5 | County Ambassador Applications due by 11:59PM | Deadline |
| Apr 11 | Regional Presentation Day, location and time TBA | Regional/State Event |
| Apr 25 | Life Skills Festival ‘The 4-H Experience’, location TBA | County Event |
| May 2 | All other (non-livestock, including Creative Kids) entries due for San Mateo County Fair by 11:59 pm | Deadline |
| May 8 | Online Livestock & all other category entries due for San Mateo County Fair by 11:59pm | Deadline |
| May 15 | Late online Livestock & all other category entries due for San Mateo County Fair by 11:59pm, Late entry forms for the Fine Arts Dept. due in office by 5:00pm | Deadline |
| May 18 | COSMO 4-H Meeting, 7 – 8 PM, Fox Elementary School | County Event |
| May 23 | State Field Day, UC Davis campus, all day | Regional/State Event |
| May 25 | Office Closed, Memorial Day | County Office/Staff Lead |
| Jun 5-14 | San Mateo County Fair | County Event |
| Jun 5-14 | Pen Pride Fundraiser, County Fair | County Event |
| Jun 5-14 | Cake Booth Fundraiser, County Fair | County Event |
| Jun 13 | County Farm Committee meeting, Sequoia Hall, Time | County Office/Staff Lead |
| Jun 19 | Office Closed, Juneteenth | County Office/Staff Lead |
| Jun 28 | 4-H SUMMER CAMP begins | County Event |
July 2026-2027 4-H Program Year Begins
| Date | Event | Type |
|---|---|---|
| TBD | CA State Leadership Conference | Regional/State Event |
| Jul 3 | 4-H SUMMER CAMP ends | County Event |
| Jul 26 | Scholarship II application due by 11:59pm* | County Event |
State Events
For more events offered by State 4-H, visit their Events page.
Regional Events:
Regional Presentation Days - In person