IPUMS-I: descr: MIG1_5

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MIG1_5_US

State of residence 5 years ago, United States; consistent boundaries, GIS

Codes and Frequencies

Category availability view
Case-count view

An 'X' indicates the category is available for that sample

Code	Label	usa 1970	usa 1980	usa 1990	usa 2000
840001	Alabama	X	X	X	X
840002	Alaska	X	X	X	X
840004	Arizona	X	X	X	X
840005	Arkansas	X	X	X	X
840006	California	X	X	X	X
840008	Colorado	X	X	X	X
840009	Connecticut	X	X	X	X
840010	Delaware	X	X	X	X
840011	District of Columbia	X	X	X	X
840012	Florida	X	X	X	X
840013	Georgia	X	X	X	X
840015	Hawaii	X	X	X	X
840016	Idaho	X	X	X	X
840017	Illinois	X	X	X	X
840018	Indiana	X	X	X	X
840019	Iowa	X	X	X	X
840020	Kansas	X	X	X	X
840021	Kentucky	X	X	X	X
840022	Louisiana	X	X	X	X
840023	Maine	X	X	X	X
840024	Maryland	X	X	X	X
840025	Massachusetts	X	X	X	X
840026	Michigan	X	X	X	X
840027	Minnesota	X	X	X	X
840028	Mississippi	X	X	X	X
Code	Label	usa 1970	usa 1980	usa 1990	usa 2000
840029	Missouri	X	X	X	X
840030	Montana	X	X	X	X
840031	Nebraska	X	X	X	X
840032	Nevada	X	X	X	X
840033	New Hampshire	X	X	X	X
840034	New Jersey	X	X	X	X
840035	New Mexico	X	X	X	X
840036	New York	X	X	X	X
840037	North Carolina	X	X	X	X
840038	North Dakota	X	X	X	X
840039	Ohio	X	X	X	X
840040	Oklahoma	X	X	X	X
840041	Oregon	X	X	X	X
840042	Pennsylvania	X	X	X	X
840044	Rhode Island	X	X	X	X
840045	South Carolina	X	X	X	X
840046	South Dakota	X	X	X	X
840047	Tennessee	X	X	X	X
840048	Texas	X	X	X	X
840049	Utah	X	X	X	X
840050	Vermont	X	X	X	X
840051	Virginia	X	X	X	X
840053	Washington	X	X	X	X
840054	West Virginia	X	X	X	X
840055	Wisconsin	X	X	X	X
Code	Label	usa 1970	usa 1980	usa 1990	usa 2000
840056	Wyoming	X	X	X	X
840097	Abroad	X	X	X	X
840098	Unknown	·	·	·	·
840999	NIU (not in universe)	X	X	X	X

Explore how IPUMS created this variable

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      class Mig1_5_us : public Editor {

public:
  Mig1_5_us(VarPointer varInfo) : Editor(varInfo) {}
  void edit() {

    long a = getRecoded();
    switch (dataSet) {
    case dataset_id::us1980a: {
      if (US1980A_0481() == 990 && US1980A_0423() >= 5)
        a = GEO1_US(0);
    } break;
    }

    setData(a);
  }
};

Comparability — General

MIG1_5_US is fully comparable across U.S. samples, except for one key universe difference. Only half the persons in the 1980 U.S. sample were coded for purposes of migration; the other half are included in the NIU category.

Also, in 1970 current state of residence is unknown for many cases, for confidentiality reasons. For non-movers, state of residence 5 years ago is inferred from current state of residence. There are therefore a large number of unknowns in that sample.

The 1970 United States sample privileges the identification of metropolitan areas over states. If knowing both the state and metro area of residence would allow the identification of a subpopulation less than 250,000 persons, then the state is coded as "State not identified"

US Territories, including Puerto Rico, Guam, and the Virgin Islands are coded as "Abroad".

For a similar variable reporting state of residence 1 year ago in the 2005 sample, see MIG1_1_US.

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Codes and Frequencies

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Comparability — General

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