Youth and community nonprofits / California / Orinda

Amateur sports competitions

United States Water Polo Foundation

A tax-exempt nonprofit in Orinda, California, classified by the IRS as amateur sports competitions. For the year ending Sep 2025 it reported $80,652 in revenue and $165,937 in expenses.

Data as of November 8, 2026Markdown copy JSON data

What it says it does

“The organization provides financial support for the sport of water polo and for the USA National Water Polo Team athletes.”From the organization's Form 990 for the year ending Sep 2025, as written (including spelling); all-capital text shown in normal capitalization.

IRS facts

Type: Amateur sports competitions (IRS activity code N70)

Mailing city (IRS): Orinda, California 94563

EIN: 95-3961812

Tax status: 501(c)(3), eligible to receive tax-deductible donations; IRS-recognized as tax-exempt since 1985, per IRS records posted October 13, 2026.

Revenue on its latest IRS filing: $80,652 (year ending Sep 2025)

Check its status on IRS Tax Exempt Organization Search · Filings on ProPublica Nonprofit Explorer

United States Water Polo Foundation finances

From the annual returns the group files with the IRS (Form 990, or the shorter Form 990-EZ for smaller groups), 4 filed years. Net assets are what it owns minus what it owes; management and general is office, admin and insurance cost. A dash means not reported (the short form does not ask for employees or volunteers). Each figure links to that year's return. A year is left out when no return is in the IRS e-file data; that does not mean the group was inactive.

Year ending	Sep 2021	Sep 2022	Sep 2023	Sep 2025
Total revenue	$104,608	$76,757	$79,683	$80,652
Total expenses	$7,090	$129,126	$148,916	$165,937
Total assets	$3,808,441	$3,204,393	$3,450,156	$4,377,003
Liabilities	$0	$0	$0	$0
Net assets	$3,808,441	$3,204,393	$3,450,156	$4,377,003
Employees	0	0	0	0
Volunteers	5	5	5	5
IRS form	Form 990	Form 990	Form 990	Form 990

Where the money goes, year ending Sep 2025

Programs $155,000 (93%)
Management and general $10,937 (7%)
Fundraising $0 (0%)

Where the money comes from, year ending Sep 2025

Gifts and grants $20,260 (25%)
Program fees $0 (0%)
Investment income $60,392 (75%)
Other $0 (0%)

People: 0 employees and 5 volunteers reported for the year ending Sep 2025. Counts only; BackPR does not publish names of officers or staff.

Revenue trend: Steady. Revenue went from $104,608 (year ending Sep 2021) to $80,652 (Sep 2025), about -6% a year.

Growth label: we compare total revenue on the oldest and the newest return shown above. Growing means revenue rose by more than 10% a year on average, Shrinking means it fell by more than 10% a year, and Steady means a change between -10% and +10% a year. The rate is the compounded yearly average between the two returns, so it hides ups and downs in between (see the table). We only label groups with returns at least a year apart and at least $5,000 of revenue on the oldest one. This is our own calculation, not an IRS rating or a judgment of quality.

Source: IRS Form 990 Series Downloads (the returns open on ProPublica Nonprofit Explorer, which republishes the IRS files). Figures are as the organization filed them. California nonprofit.

How it compares

6 of 11 amateur sports nonprofits in Orinda when sorted from largest to smallest revenue. This shows size only, not quality. Groups with no reported revenue are listed last.

Size: revenue of $80,652 is higher than roughly 20 to 30% of the 2,432 amateur sports nonprofits in California that report revenue to the IRS (the city count above also includes groups with none). The median is $143,571.

Our analysis of the IRS Business Master File (posted October 13, 2026), using each group's latest reported revenue. Groups are sorted by revenue and split into ten equal bands, using all California groups of this type (Amateur sports, which covers several IRS activity codes). Size only, not a rating.

Around Orinda and its county

Contra Costa County, California: the Census Bureau estimates about 251,475 children under 18 (July 1, 2024). This directory lists 569 youth and community nonprofits with a mailing ZIP code in the county, about 2.3 per 1,000 children. The count includes PTAs, arts and day care groups, so it is not a measure of places for kids.

This group's ZIP code is matched to the county that holds most of its area, so counts are approximate. County figures come from the Census Bureau's Vintage 2024 population estimates.

What is United States Water Polo Foundation's EIN?

United States Water Polo Foundation's EIN (Employer Identification Number) is 95-3961812. It is the nine-digit number the IRS uses to identify the organization. Source: IRS Exempt Organizations Business Master File posted October 13, 2026.

Is United States Water Polo Foundation a nonprofit?

Yes. The IRS lists United States Water Polo Foundation in Orinda, California as tax-exempt under section 501(c)(3), recognized since 1985. This is from the IRS Business Master File posted October 13, 2026. Status can change, so check its current status on the IRS Tax Exempt Organization Search before you donate.

Are donations to United States Water Polo Foundation tax-deductible?

Yes, the IRS lists gifts to United States Water Polo Foundation as tax-deductible (IRS Business Master File posted October 13, 2026). How much you can deduct depends on your own taxes, and this is not tax advice. Check its current status on the IRS Tax Exempt Organization Search before you donate.

What does United States Water Polo Foundation do?

In its own words on its Form 990 for the year ending Sep 2025: "The organization provides financial support for the sport of water polo and for the USA National Water Polo Team athletes." The IRS classifies it as: Amateur sports competitions.

How much money does United States Water Polo Foundation take in?

For the year ending Sep 2025, United States Water Polo Foundation reported total revenue of $80,652 and total expenses of $165,937 on its Form 990 (IRS Form 990 e-file data).

Do you run this organization?

EIN 27-3139599

Swimming and water sports

Orinda Aquatics Inc

Orinda, CA 94563

Tax-exempt since 1996 · EIN 68-0372253

All youth and community nonprofits in Orinda

Source: IRS Exempt Organizations Business Master File, posted October 13, 2026. We list 501(c)(3) organizations whose IRS activity code is youth development, amateur sports, camps and recreation, parent-teacher groups, children's services, child day care or arts education. We show the city and ZIP code only, never a street address or contact person. A listing is not an endorsement.

Data as of November 8, 2026. Sources: IRS Business Master File (posted October 13, 2026), IRS Form 990 series e-file data, U.S. Census Bureau population estimates (July 1, 2024), state child care licensing records in the BackPR finder. Growth labels, ranks and percentiles are BackPR's own calculations.

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