# Sioux City Mariners

Amateur sports nonprofit in Sioux City, Iowa 51104. EIN 83-1941918. Data as of November 8, 2026.

Page: https://backpr.com/find/nonprofit/831941918-sioux-city-mariners

## IRS facts

- Type: Amateur sports (IRS activity code N60)
- Tax status: 501(c)(3), contributions deductible, recognized 2018
- Source: IRS Business Master File, posted October 13, 2026: https://www.irs.gov/charities-non-profits/exempt-organizations-business-master-file-extract-eo-bmf

## Local context

- Woodbury County, Iowa: about 27,229 children under 18 (U.S. Census Bureau, July 1, 2024): https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/counties/asrh/cc-est2024-agesex-all.csv
- 48 youth and community nonprofits in this directory in the county: 1.8 per 1,000 children.
- Iowa rules: https://backpr.com/resources/states/iowa

## Questions

**What is Sioux City Mariners's EIN?**

Sioux City Mariners's EIN (Employer Identification Number) is 83-1941918. 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 Sioux City Mariners a nonprofit?**

Yes. The IRS lists Sioux City Mariners in Sioux City, Iowa as tax-exempt under section 501(c)(3), recognized since 2018. 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 Sioux City Mariners tax-deductible?**

Yes, the IRS lists gifts to Sioux City Mariners 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 Sioux City Mariners do?**

The IRS classifies Sioux City Mariners as: Amateur sports. It has not filed a Form 990 or 990-EZ with a mission statement that we have loaded.

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Data as of November 8, 2026. Sources: IRS Business Master File, IRS Form 990 series e-file data, U.S. Census Bureau. No officer or staff names are published.