| UKEY | Unique ID | Unique ID | |
| STATE | State | Two-letter state abbreviation. | |
| AGIC | AGI code | Adjusted Gross Income code - NCCS code identifies nature of change made to the record | |
| AGILEV | AGI level | Adjusted Gross Income Level. u50= AGI under $50,000; o50= AGI over $50,000; tot= total. | |
| AREANAME | MSA/PMSA | Metropolitan Statistical Area/Primary Metropolitan Statistical Area Name | |
| ZIP | Zip Code | ZIP code. | Beginning, sec.C3 |
| FIPS | State + County FIPS code | 2-digit State + 3-digit County FIPS code (Federal Information Processing Standard). See also U.S. Census Bureau State & County QuickFacts. | |
| MSA_PMSA | MSA/PMSA name | Metropolitan Statistical Area/Primary Metropolitan Statistical Area Name
(list) | |
| MSANAME | MSA name | Metropolitan Statistical Area Name. (list) | |
| MSA | Metropolitan Statistical Area | Metropolitan Statistical Area (NCCS file) (list) | |
| PMSA | Primary MSA | Primary Metropolitan Statistical Area - the component areas that comprise a CMSA (76 PMSAs as of 1995). (list) | |
| AGI2 | Adjusted Gross Income | Total adjusted gross income (AGI). This figure is taken from the IRS Form 1040. | |
| PMSANAME | PMSA name | Primary Metropolitan Statistical Area Name (list) | |
| AGISize | Size type | Size Group Type (zipcode, <50k AGI, >50k AGI) | |
| CNTY_NM | County | County Name | |
| STCODE | State/zip level? | State code: st=state level data, zip=zip code level data | |
| AGICONTP | Contribs. as % of AGI | Amount of contribution as a percentage of the Adjusted Gross Income. | |
| AGIA | AGI average | Average Gross Adjusted Income. This is the Average Adjusted Income for
the dataset. | |
| SchAAgi | AGI from itemizers | Adjusted Gross Income from Itemized Returns. | |
| RETURNSC | Num. of returns code | Number of Returns Code - NCCS code identifies nature of change made to the record | |
| SchANum2 | Num. of itemizers | Total Number of Itemized Returns.
| |
| ZIPCOL1 | Zip/geography + AGI size type | Zip/geography + AGI size type | |
| NUMBER | Sort order | Sort by state and number to order records | |
| TotReturns2 | Total Number of Tax Returns | Total Number of Tax Returns | |
| ITEMNUMP | Num. itemizers as % of returns | Number of Itemized Returns as a percentage of all Returns.
| |
| ITEMNUMC | Num. of itemizers code | Number of Itemized Returns Code - NCCS code identifies nature of change made to the record | |
| ITEMAGIC | Itemizer AGI code | Itemizer AGI code
| |
| ITEMAGIA | Avg. AGI from itemizers | Average Adjusted Gross Income from Itemized Returns. | |
| CONTNUMP | Num. w. contribs.as % of returns | Number of Returns filed with Charitable Contributions as a percentage of total number of Returns Filed. | |
| CONTNUMC | Num.of contribs. code | Number of Contributions Code -Number of Contributions Code -identifies nature of change made to the record | |
| ContNum2 | Num.returns w. contribs. | Number of Returns Filed with Charitable Contributions. | |
| CONTAMTC | Contrib. amt. code | Contributions Amount Code - NCCS code identifies nature of change made to the record | |
| CONTAMTA | Avg. contributions | Average amount of contributions made. | |
| CONTAGIC | Contrib. AGI code | Contributer AGI code - NCCS code identifies nature of change made to the record | |
| CONTAGIA | Avg.AGI for returns w. contribs. | Average Gross Adjusted Income from Tax Returns with Contributions. | |
| Cont2 | Tot. contributions | Total amount of Contributions Reported.
| |