Houston Zoo Inc
1513 Cambridge St, Houston, TX · IRS data through FY2024
Revenue, expenses and net assets
Revenue Expenses Net assets
| Tax year | Revenue | Expenses | Net assets |
|---|---|---|---|
| FY2024 | $82,689,282 | $70,313,815 | $332,381,545 |
| FY2023 | $82,522,000 | $62,823,859 | $318,085,248 |
| FY2022 | $68,161,300 | $54,219,079 | $294,035,147 |
| FY2021 | $84,488,792 | $48,433,202 | $284,050,047 |
| FY2020 | $54,380,451 | $45,355,956 | $249,756,623 |
| FY2019 | $73,932,331 | $52,896,982 | $239,395,069 |
| FY2018 | $103,228,386 | $49,858,185 | $216,950,654 |
| FY2017 | $71,339,275 | $48,596,261 | $168,322,910 |
| FY2016 | $56,232,922 | $48,461,175 | $144,447,154 |
| FY2015 | $50,360,218 | $43,233,413 | $137,483,446 |
| FY2014 | $51,829,881 | $38,895,281 | $131,313,195 |
| FY2013 | $50,120,783 | $34,759,764 | $118,906,245 |
| FY2012 | $52,333,094 | $33,049,617 | $102,980,923 |
| FY2011 | $33,171,567 | $30,309,035 | $83,694,867 |
Form 990 filings
The returns filed by Houston Zoo Inc (EIN 74-1590271), including Form 990 PDFs and e-file data by year, are available in ProPublica's Nonprofit Explorer. The figures on this page come from IRS data files built from those returns.
Where the revenue came from
| Source | Amount | % of revenue |
|---|---|---|
| Contributions & grants | $24,795,320 | 30% |
| Program service revenue | $52,221,538 | 63% |
| Other revenue | $5,672,424 | 7% |
Where the money was spent
| Category | Amount | % of expenses |
|---|---|---|
| Program services | $60,634,657 | 86% |
| Management & general | $5,297,022 | 8% |
| Fundraising | $4,382,136 | 6% |
What the numbers show
- Program service revenue made up 63% of total revenue in FY2024.
- Program services accounted for 86% of functional expenses, management & general 8%, and fundraising 6%.
- 86% of functional expenses went to program services in FY2024. That is higher than 73% of 241 Animal-Related organizations nationwide (too few in TX for a state comparison).
- Net assets covered about 56.7 months of expenses at the end of the reporting year. That puts it in the 87th percentile among 820 Animal-Related organizations in TX.
- Total revenue was the highest among 834 Animal-Related organizations in TX.
- Total revenue rose from $33,171,567 in FY2011 to $82,689,282 in FY2024. Revenue increased in 8 and decreased in 5 of 13 year-over-year comparisons.
- Revenue covered expenses in each of the 14 reported years, FY2011 to FY2024.
- The highest revenue on record here is $103,228,386 in FY2018.
- Net assets grew from $83,694,867 to $332,381,545 between FY2011 and FY2024.
- Listed in the IRS Publication 78 data as eligible to receive tax-deductible contributions (public charity).
Figures compared against other organizations of the same NTEE program area in the same state. See the methodology page for how these are calculated and the guide to reading nonprofit financials for their limits.
About this organization
To connect communities with animals, inspiring action to save wildlife.
IRS status
| Ruling year | 1967 |
| Subsection | 501(c)(3) |
| Classification | Public charity |
| Program area (NTEE) | D115 — Animal-Related |
| Donations | Listed in the IRS Publication 78 data as eligible to receive tax-deductible contributions (public charity). |
Similar organizations
- Rewild — Austin, TX · $75,177,871
- Fort Worth Zoological Association Inc — Fort Worth, TX · $62,181,894
- San Antonio Zoological Society Inc — San Antonio, TX · $61,090,159
Source: Internal Revenue Service — Exempt Organizations Business Master File (downloaded November 4, 2026), Statistics of Income extracts, Form 990 e-file data, Publication 78 and the Automatic Revocation list. Figures are as reported by the organization; IRS processing may adjust them. This is not a charity rating and not tax advice. Confirm deductibility in IRS Tax Exempt Organization Search.
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