Documentation for: 2004-2005 State-to-State Migration Flows A. File characteristics: ASCII language Filenames = stateinflow0405.dat (for in-migration flows) stateoutflow0405.dat (for out-migration flows) Record length = 82 characters B. Records Included for In-Migration Flows: The file contains records for the state level migration flows to each state in the U.S. (including the District of Columbia) from other states in the U.S., from foreign, and for non-migrants. There are 3 total records for each state, representing the total of all in-migration flows from other states. The 3 total records are: 1. total of all in-migration flows from other states in the U.S. and from foreign; 2. total of all in-migration flows from other states in the U.S. 3. total of all in-migration flows from foreign There are also 3 similar records total records representing the sum of all in-migration flows for all states in the U.S. Records are included for all in-migration flows, however, some data may be suppressed. It is replaced with the value "-1" if the data is based on less that 3 returns. For example, if state-to-state flow from VT to ND was suppressed, then the values for the flows VT to SD, NH to ND, and NH to SD were also suppressed to prevent rederivation of suppressed data. C. Record description for In-Migration Flows: Character Description Positions 1-2 FIPS State Code for Destination: 00 = U.S. Total 01 to 56 = States in the U.S. 3 Blank 4-6 FIPS County Code for Destination: 000 = All records 7 Blank 8-9 FIPS State Code for Origin: 01 to 56 = Migration flow 57 = Migration flow from foreign 96 = Total in-migrants 97 = Total ins from other state in U.S. 98 = Total ins from foreign 10 Blank 11-13 FIPS County Code for Origin: 000 = All records 14 Blank 15-16 2-Character State Abbreviation: For U.S. Total record, for non-migrant records, and for summary records, the field contains the name for the destination state: US = U.S total record AL to WY = States in the U.S. For state-to-state flow records, the field contains the name for the origin state: AL to WY = Flows from states in the U.S. FR = Migration flow from foreign 17 Blank 18-49 State Name: For U.S. Total record, for non-migrant records, and for summary records, the field contains the 2-character state abbreviation for the destination state and the name for the origin state: "__ Total Mig - US & For" "__ Total Mig - US" "__ Total Mig - Foreign" "-- Non-migrants" For state-to-state flow records, the field contains the name for the origin state: "Alabama" to "Wyoming" "Foreign" 50 Blank 51-59 Number of Returns -1 = data value suppressed 3 to 999999999999 = Potential legitimate values 60-70 Number of Exemptions -1 = data value suppressed 3 to 999999999999 = Potential legitimate values 71-82 Aggregate Adjusted Gross Income (in 1,000s) -1 = data value suppressed -99999999999 to 999999999999 = Potential legitimate values D. Records Included for Out-Migration Flows: The file contains records for the state level migration flows from each state in the U.S. (including the District of Columbia) to other states in the U.S., to foreign, and for non-migrants. There are 3 total records for each state, representing the total of all out-migration flows to other states. The 3 total records are: 1. total of all out-migration flows to other states in the U.S. and to foreign; 2. total of all out-migration flows to other states in the U.S. 3. total of all out-migration flows to foreign There are also 3 similar records total records representing the sum of all out-migration flows for all states in the U.S. Records are included for all out-migration flows, however, some data may be suppressed. It is replaced with the value "-1" if the data is based on less that 3 returns. For example, if the state-to-state flow from VT to ND was suppressed; then the values for the flows VT to SD, NH to ND, and NH to SD were also suppressed to prevent rederivation of suppressed data. E. Record description for Out-Migration Flows: Character Description Positions 1-2 FIPS State Code for Origin: 00 = U.S. Total 01 to 56 = States in the U.S. 3 Blank 4-6 FIPS County Code for Origin: 000 = All records 7 Blank 8-9 FIPS State Code for Destination: 01 to 56 = Migration flow 57 = Migration flow to foreign 96 = Total outs-migrants 97 = Total outs to other state in U.S. 98 = Total outs to foreign 10 Blank 11-13 FIPS County Code for Destination: 000 = All records 14 Blank 15-16 2-Character State Abbreviation: For U.S. Total record, for non-migrant records, and for summary records, the field contains name for the origin state: US = U.S total record AL to WY = States in the U.S. For state-to-state flow records, the field contains the name for the destination state: AL to WY = Flows to states in the U.S. FR = Migration flow to foreign 17 Blank 18-49 State Name of Destination: For U.S. Total record, for non-migrant records, and for summary records, the field contains the 2-character state abbreviation for the origin state and the name for the destination state: "__ Total Mig - US & For" "__ Total Mig - US" "__ Total Mig - Foreign" "-- Non-migrants" For state-to-state flow records, the field contains the name for the destination state: "Alabama" to "Wyoming" "Foreign" 50 Blank 51-59 Number of Returns -1 = data value suppressed 3 to 999999999999 = Potential legitimate values 60-70 Number of Exemptions -1 = data value suppressed 3 to 999999999999 = Potential legitimate values 71-82 Aggregate Adjusted Gross Income (in 1,000s) -1 = data value suppressed -99999999999 to 999999999999 = Potential legitimate values F. Notes: Records where the origin state code and the destination state code are the same are for the state non-migrant records.