IRS Statistics of Income individual-tax ZIP-code file, Tax Year 2022 (keyless official CSV, U.S. public domain): the six AGI-bracket rows per ZIP collapsed to one ZIP-grain row (~27,500 ZIPs) with a full income anatomy — returns, AGI, mean AGI per return, salary/wage share, effective federal income-tax rate, itemized-deduction / EIC / elderly shares, bracket-distribution and top-bracket concentration measures. A documented 0-100 affluence_score (45% log mean AGI + 35% $100k+ return share + 20% $200k+ AGI share, min-maxed nationally) is ranked nationally (affluence_rank) and within-state, tiered a1-a4, with top-100, high-concentration (>=50% of AGI from $200k+ filers), and low-income-dominant flags. Per-state identity gates (ZIP sums vs the file's own 00000 aggregate rows within 0.5%) fail loudly. Primary key: zipcode. Cadence: yearly; the upstream file is a static annual vintage, so as_of is the tax year and identical input produces an identical content hash. Caveats: ZIP is the filing address, not necessarily residence; DC counted as a state; territories absent; the filing window includes limited prior-year returns. Sample use: order by affluence_rank for the richest ZIPs, or filter state_code for within-state income geography.

Source: IRS SOI ZIP-Code Income Intelligence
Rows: 27,589
Columns: 30
Source cadence: Yearly
Last refreshed: Sep 27, 2026
Theme: economy

Column	Type	Description
as_of	string	Fixed vintage stamp: the tax year of the SOI file (identical input yields an identical content hash). (unit: year)
tax_year	integer	Tax year of the returns tabulated in the vintage. (unit: year)
zipcode	string	5-digit ZIP code (filing address on the return); stable primary key. (unit: id)
state_code	string	USPS two-letter state/District code from the file. (unit: code)
state_name	string	State/District name for the state_code.
country_code	string	Constant USA join key. (unit: code)
returns	integer	Number of individual income tax returns filed from the ZIP (SOI N1; approximates households). (unit: count)
individuals	integer	Number of individuals/exemptions (SOI N2; approximates population). (unit: count)
agi_usd	float	Adjusted gross income summed over the ZIP, in USD (file amounts are thousands of dollars). (unit: USD)
mean_agi_usd	float	agi_usd / returns: mean AGI per return. (unit: USD)
wages_share_pct	float	Salaries and wages (SOI A00200) as a share of AGI — the labor-vs-capital income mix. (unit: percent)
effective_tax_rate_pct	float	Income tax after credits (SOI A06500) as a share of AGI — the ZIP's effective federal income-tax rate. (unit: percent)
itemized_share_pct	float	Share of returns claiming itemized deductions (SOI N04470). (unit: percent)
eic_share_pct	float	Share of returns claiming the Earned Income Credit (SOI N59660) — a low/moderate-income signal. (unit: percent)
elderly_share_pct	float	Share of elderly returns (SOI ELDERLY). (unit: percent)
low_bracket_share_pct	float	Share of returns with AGI under $25k (agi_stub 1). (unit: percent)
midhigh_bracket_share_pct	float	Share of returns with AGI $100k+ (agi_stub 5+6). (unit: percent)
top_bracket_returns_share_pct	float	Share of returns with AGI $200k+ (agi_stub 6). (unit: percent)
top_bracket_agi_share_pct	float	Share of the ZIP's AGI earned by $200k+ filers — income concentration. (unit: percent)
affluence_score	float	Documented 0-100 score = 100(0.45min-max log1p(mean_agi_usd) + 0.35min-max midhigh_bracket_share_pct + 0.20min-max top_bracket_agi_share_pct), min-maxed nationally. (unit: score)
affluence_rank	integer	National affluence rank (1 = most affluent; ties broken by mean_agi desc, zipcode asc). (unit: rank)
affluence_tier	string	Rank-quartile tier: a1 (top 25%) .. a4. (unit: tier)
state_affluence_rank	integer	Affluence rank within the ZIP's state (1 = most affluent in state). (unit: rank)
state_agi_share_pct	float	The ZIP's share of its state's total AGI. (unit: percent)
top100_national_flag	integer	1 when affluence_rank <= 100. (unit: flag)
high_concentration_flag	integer	1 when $200k+ filers earn >=50% of the ZIP's AGI. (unit: flag)
low_income_dominant_flag	integer	1 when >=50% of returns are under $25k. (unit: flag)
n_brackets_reported	integer	Number of AGI brackets with rows for the ZIP (1-6; fewer means SOI suppressed thin cells). (unit: count)
source_url	string	Canonical URL of the official SOI 2022 ZIP-code CSV. (unit: URL)
row_hash	string	SHA-256 (16 hex) over the row's content fields; identical input yields an identical hash. (unit: hash)

First 10 sample rows — a preview, not the complete dataset.

as_of	tax_year	zipcode	state_code	state_name	country_code	returns	individuals	agi_usd	mean_agi_usd	wages_share_pct	effective_tax_rate_pct	itemized_share_pct	eic_share_pct	elderly_share_pct	low_bracket_share_pct	midhigh_bracket_share_pct	top_bracket_returns_share_pct	top_bracket_agi_share_pct	affluence_score	affluence_rank	affluence_tier	state_affluence_rank	state_agi_share_pct	top100_national_flag	high_concentration_flag	n_brackets_reported	source_url	row_hash
2022	2,022	33109	FL	Florida	USA	400	740	1,761,471,000	4,403,678	12.54	23.74	55	0	50	15	77.5	67.5	99.55	98.15	1	a1	1	0.158	1	1	6	https://www.irs.gov/pub/irs-soi/22zpallagi.csv	2651742fcf82df67
2022	2,022	33480	FL	Florida	USA	6,450	9,760	19,585,866,000	3,036,568	8	22.43	44.65	2.64	65.43	14.11	62.17	47.44	98.79	88.51	2	a1	2	1.753	1	1	6	https://www.irs.gov/pub/irs-soi/22zpallagi.csv	fe254e7d3c2b18e2
2022	2,022	94027	CA	California	USA	3,050	5,720	4,841,930,000	1,587,518	35.7	25.56	49.51	1.31	40.98	15.41	67.21	54.75	98.11	85.43	3	a1	1	0.247	1	1	6	https://www.irs.gov/pub/irs-soi/22zpallagi.csv	14a71de76532d1f2
2022	2,022	10282	NY	New York	USA	2,140	4,190	1,757,605,000	821,311	58.68	26.42	23.83	2.34	12.62	8.41	77.57	60.75	95.82	84.21	4	a1	1	0.174	1	1	6	https://www.irs.gov/pub/irs-soi/22zpallagi.csv	dc6cc4e3bc851382
2022	2,022	94301	CA	California	USA	8,060	14,510	13,227,844,000	1,641,172	20.15	17.4	33.37	2.48	33	14.14	63.9	45.41	97.45	84.14	5	a1	2	0.674	1	1	6	https://www.irs.gov/pub/irs-soi/22zpallagi.csv	3b7ca6cd40d1d066
2022	2,022	90067	CA	California	USA	3,850	6,440	4,880,374,000	1,267,630	39.46	27.35	50.39	2.6	38.96	14.03	68.05	52.21	97.22	83.83	6	a1	3	0.249	1	1	6	https://www.irs.gov/pub/irs-soi/22zpallagi.csv	0b7d936c72f22a3d
2022	2,022	89413	NV	Nevada	USA	230	350	250,064,000	1,087,235	17.13	21.92	47.83	0	60.87	17.39	69.57	47.83	95.95	83.02	7	a1	1	0.18	1	1	6	https://www.irs.gov/pub/irs-soi/22zpallagi.csv	9dbdeb4ce170b188
2022	2,022	94028	CA	California	USA	3,360	6,530	3,295,277,000	980,737	43.84	25.13	48.21	1.19	46.43	12.8	71.13	55.36	96.51	82.99	8	a1	4	0.168	1	1	6	https://www.irs.gov/pub/irs-soi/22zpallagi.csv	f5ea124a66c8c926
2022	2,022	60043	IL	Illinois	USA	1,090	2,510	1,312,338,000	1,203,980	30.24	24.82	46.79	0	29.36	18.35	66.06	55.96	97.97	82.73	9	a1	1	0.226	1	1	6	https://www.irs.gov/pub/irs-soi/22zpallagi.csv	04a33451f9d789fb
2022	2,022	07078	NJ	New Jersey	USA	6,070	14,670	6,338,056,000	1,044,161	41.34	27.46	43.49	1.48	23.72	17.96	68.53	58.48	97.69	82.61	10	a1	1	1.255	1	1	6	https://www.irs.gov/pub/irs-soi/22zpallagi.csv	f7175763d5c737f8

Sep 27, 2026Current
20260927T023305Z-231109459d22 · sha256 231109459d22…
27,589 rows · first snapshot

Point any LLM at the metadata endpoint — the documentation above is machine-readable too (JSON-LD + Croissant).

cURL

curl "https://datazimuts.com/v1/datasets/irs_soi_zip_income/us_zip_code_income_annual" | jq '{title, rows, columns_count, license}'

Python

import requests

ds = requests.get("https://datazimuts.com/v1/datasets/irs_soi_zip_income/us_zip_code_income_annual").json()
print(ds["title"], ds["rows"], "rows")

# Sample rows for an LLM context window
for row in ds.get("sample_rows", [])[:5]:
    print(row)

API endpoint: https://datazimuts.com/v1/datasets/irs_soi_zip_income/us_zip_code_income_annual

Tip: fetch /llms.txt for the full machine-readable catalog.

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APA

IRS SOI ZIP-Code Income Intelligence. (2026). US ZIP-code income intelligence (annual) [Data set, snapshot 20260927T023305Z-231109459d22, sha256 231109459d22]. Datazimuts. Retrieved 2026-09-27, from https://datazimuts.com/en/datasets/irs_soi_zip_income/us_zip_code_income_annual?snapshot=20260927T023305Z-231109459d22

BibTeX

@misc{dz_irs_soi_zip_income_us_zip_code_income_an_23110945,
  title        = {{US ZIP-code income intelligence (annual)}},
  author       = {{IRS SOI ZIP-Code Income Intelligence}},
  year         = {2026},
  publisher    = {Datazimuts},
  howpublished = {\url{https://datazimuts.com/en/datasets/irs_soi_zip_income/us_zip_code_income_annual?snapshot=20260927T023305Z-231109459d22}},
  note         = {Snapshot 20260927T023305Z-231109459d22, sha256 231109459d228f1a8175dbc6d0ee3bc931322ca5761278fa49f7add2e6b70bf1; accessed 2026-09-27}
}

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US ZIP-code income intelligence (annual)

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