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Julia Koch

Julia Koch

American socialite and philanthropist

New YorkDiversified
D
23
Giving Score
uses a net worth as of 2025
Compare Julia Koch with another billionaire →

AIProfile Summary

A net worth stated in this summary may be out of date.

Julia Koch is an American socialite and philanthropist, born in 1962, with an estimated net worth of ~$81.2 billion. She is associated with New York and the diversified industry category. Wikidata

Philanthropy

Three listed Koch Foundation entities reported combined assets of $111.45 million and grants paid of $9.75 million in their latest available filings: Koch Foundation in Iowa (2015), Koch Foundation Inc. in Florida (2024), and Koch Foundation Inc. in Indiana (2023). The Florida foundation reported $71.66 million in assets and $6.84 million in grants paid; the Indiana foundation reported $39.78 million in assets and $2.90 million in grants paid. ProPublica 990

Political Activity

FEC records show at least 100 federal contributions in the most recent 100 contributions on file, covering 2022-10-19 through 2026-07-17; the FEC reports 787 contributions in total. These sampled records total $38,680.20: $27,630.20 with an unknown party designation, $6,600 to independent recipients, and $4,450 to Democratic recipients. The largest recipients in the sample were Sinema Leadership Fund ($10,800), Koch, Inc. Political Action Committee/KochPAC ($10,000), Sinema for Arizona ($6,600), Koch Industries, Inc. Political Action Committee/KochPAC ($5,000), and Getting Stuff Done PAC ($4,200). FEC

These donations are matched to this person by name only, so some may belong to a different person with the same name: FEC filings can include a donor's employer and city, but our matching does not check them against what we know about this person.

In the News

A Page Six article published August 17, 2026, reported that Koch had bought a nearby Southampton, New York, property for $33.5 million and was undertaking renovations connected to a family compound in the Hamptons. The report described two homes she owns on Meadow Lane in Southampton. NewsAPI

AI-generated summary from gdelt, newsapi, propublica_990, wikidata, fec — 9/13/2026 (gpt-5.6-terra). All claims are derived from the source data shown below.

USU.S. Presence

otherU.S. economic presence

990Philanthropy

Foundations are matched to a person by name, not by trustee records — so a same-surname family foundation can land here in error. Every entity below links to its full IRS filing; if one doesn’t belong, tell us at hello@skylarkcreations.com and we’ll pull it.

$111.4MFoundation Assets
$9.7MGrants Paid
3Foundations
Koch FoundationDes Moines, IA
Assets: $10KRevenue: $18KGrants: $15KTax Year: 2015
Mission, purpose & full 990 filings → ProPublica Nonprofit Explorer
Koch Foundation IncGainesville, FL
Assets: $71.7MRevenue: $6.3MGrants: $6.8MTax Year: 2024
Mission, purpose & full 990 filings → ProPublica Nonprofit Explorer
Koch Foundation IncEvansville, IN
Assets: $39.8MRevenue: $5.1MGrants: $2.9MTax Year: 2023
Mission, purpose & full 990 filings → ProPublica Nonprofit Explorer
Source: ProPublica (990) — annual filing · latest on record (retrieved 8/1/2026) (proPublica_990)Dispute

FECPolitical Contributions

$39K+In Records We Hold
787Contributions On File
2022–2026Range Shown

These figures cover the 100 most recent of 787 federal contributions on file, not the full record. The total, party split, top recipients and dates below are all computed over that sample, so each is a floor rather than a complete figure.

By Party (in the sample)

Unknown
$28K
Independent
$7K
Democratic
$4K

Every party in this sample is listed here. The bars are rounded for display; unrounded they total exactly $38,680.20.

Top Recipients (in the sample)

SINEMA LEADERSHIP FUND$11K
KOCH, INC. POLITICAL ACTION COMMITTEE (KOCHPAC)$10K
SINEMA FOR ARIZONA$7K
KOCH INDUSTRIES, INC. POLITICAL ACTION COMMITTEE (KOCHPAC)$5K
GETTING STUFF DONE PAC (GSD-PAC)$4K

Matched by name only. These donations are matched to this person by name only, so some may belong to a different person with the same name: FEC filings can include a donor's employer and city, but our matching does not check them against what we know about this person.

Source: FEC — contribution filings · latest on record (retrieved 9/12/2026) (fec)Dispute

SCOREScore Breakdown

D
23
Giving score
uses a net worth as of 2025

The giving score is a weighted average of 2 components. The formula is open and versioned — the weight percentages below show how much each component contributes to the final score.

Philanthropy65% weight
9%

Evidenced charitable giving — built on what they actually give each year, not parked assets. Dominated by generosity (annual giving relative to net worth — the share of your fortune you give), plus the absolute scale of that giving, plus a small nudge for signing the Giving Pledge (a commitment, not a realized action).

Data: ProPublica 990 charitable disbursements, net worth, The Giving Pledge registry

Data coverage35% weight
50%

How much sourced public record we hold about this person — net worth, SEC filings, foundation 990s, news coverage, Wikidata. It measures our coverage, not how open the person is. Each further kind of record scores higher, up to eight. Political donation records matched to a person by name alone are not counted: they may belong to someone else with the same name. From October 7, 2026, our own AI-written summary and the profile photo are not counted either — neither is a public record — so grades that leaned on them moved down that day.

Data: SEC EDGAR, ProPublica 990s, GDELT / NewsAPI, Wikidata

Formula (v2): Giving score = 65% x Philanthropy + 35% x Data coverage

Scored on 10/16/2026 on a 0–100 scale. The score uses only the signals we have populated data for. Goal Impact, Controversy, and Community Approval are deferred until that data exists — Phase 1 goal adoption, controversy detection, and community votes respectively.

All data is sourced from public records. Each section links to its original source. View on Wikidata