Migration in Riachão/MA (2017–2022)

Riachão/MA had a reference population (aged 5 or over in 2022) of 20,420 people. In the 2017–2022 five-year period, the municipality received 1,750 in-migrants and lost 1,395 out-migrants to other municipalities in Brazil, resulting in a net migration of +350 people (17.26 per 1,000 population) and a migration effectiveness index (IEM) of 0.112. This classifies the municipality, for the period, as one of migratory attraction. In addition, 10 arrived with an unreported origin and 30 came from abroad.

Indicators

Migration indicators for Riachão/MA, 2017–2022
Indicator	Estimate	95% CI	Precision
In-migrants	1,750	1,343 to 2,157	good
Out-migrants	1,395	1,033 to 1,757	good
Net migration	+350	−195 to 895	not classified
Net migration rate, TLM (per 1,000 pop.)	17.26	-	-
Migration effectiveness index (IEM)	0.112	-	-

Sample of in-migrants: 100-499 observations. Sample of out-migrants: 100-499 observations. 95% confidence interval computed as estimate ± 1.96 × standard error.

Top origins and destinations

Top 10 origins of in-migrants to Riachão/MA
Origin	People	Precision
Balsas/MA · view pair in the atlas	335	use with caution
Feira Nova do Maranhão/MA · view pair in the atlas	105	low precision
Campos Lindos/TO · view pair in the atlas	95	low precision
Araguaína/TO · view pair in the atlas	95	low precision
Nova Colinas/MA · view pair in the atlas	90	low precision
Goiânia/GO · view pair in the atlas	75	low precision
Carolina/MA · view pair in the atlas	75	low precision
Brasília/DF · view pair in the atlas	70	low precision
Marabá/PA · view pair in the atlas	45	low precision

Top 10 destinations of out-migrants from Riachão/MA
Destination	People	Precision
Balsas/MA · view pair in the atlas	195	use with caution
Carolina/MA · view pair in the atlas	135	low precision
Goiânia/GO · view pair in the atlas	110	low precision
Araguaína/TO · view pair in the atlas	55	low precision
Feira Nova do Maranhão/MA · view pair in the atlas	50	low precision
São Pedro dos Crentes/MA · view pair in the atlas	25	low precision
Juarina/TO · view pair in the atlas	10	low precision

Profile of migrants and residents

In-migrants (arrivals)

Migrant type
Category	Estimate	Share	Sample
First move from municipality of birth	685	39.1%	50-99
Return to municipality of birth	560	32.0%	50-99
Multi-step migration	505	28.9%	20-49

Educational attainment (people aged 25 and over)
Category	Estimate	Share	Sample
No schooling or incomplete elementary	460	44.2%	20-49
Completed high school, incomplete higher education	250	24.0%	20-49
Completed elementary, incomplete high school	190	18.3%	20-49
Completed higher education	140	13.5%	5-19

Household income per capita (in 2022 minimum wages)
Category	Estimate	Share	Sample
¼ to ½ minimum wage	635	36.3%	50-99
½ to 1 minimum wage	455	26.0%	20-49
Up to ¼ of a minimum wage	415	23.7%	20-49
1 to 2 minimum wages	180	10.3%	5-19
More than 2 minimum wages	65	3.7%	5-19

Age and sex
Category	Estimate	Share	Sample
Ages 25–39, male	265	15.1%	20-49
Ages 25–39, female	265	15.1%	20-49
Ages 5–14, female	210	12.0%	20-49
Ages 40–59, female	195	11.1%	5-19
Ages 40–59, male	195	11.1%	5-19
Ages 15–24, male	195	11.1%	20-49
Ages 15–24, female	160	9.1%	5-19
Ages 5–14, male	150	8.5%	5-19
Ages 60 and over, male	75	4.3%	5-19
Other / suppressed	45	2.6%	<5

Out-migrants (departures)

Migrant type
Category	Estimate	Share	Sample
First move from municipality of birth	1,085	77.8%	100-499
Multi-step migration	220	15.8%	20-49
Return to municipality of birth	90	6.5%	5-19

Educational attainment (people aged 25 and over)
Category	Estimate	Share	Sample
No schooling or incomplete elementary	265	42.4%	20-49
Completed high school, incomplete higher education	200	32.0%	20-49
Completed elementary, incomplete high school	85	13.6%	5-19
Completed higher education	75	12.0%	5-19

Household income per capita (in 2022 minimum wages)
Category	Estimate	Share	Sample
¼ to ½ minimum wage	450	32.1%	50-99
½ to 1 minimum wage	360	25.7%	20-49
Up to ¼ of a minimum wage	315	22.5%	20-49
1 to 2 minimum wages	155	11.1%	20-49
More than 2 minimum wages	95	6.8%	5-19
Other / suppressed	25	1.8%	<5

Age and sex
Category	Estimate	Share	Sample
Ages 15–24, female	330	23.7%	20-49
Ages 25–39, female	250	17.9%	20-49
Ages 15–24, male	175	12.5%	20-49
Ages 5–14, male	170	12.2%	5-19
Ages 25–39, male	165	11.8%	20-49
Ages 5–14, female	95	6.8%	5-19
Ages 40–59, male	75	5.4%	5-19
Ages 40–59, female	65	4.7%	5-19
Ages 60 and over, female	50	3.6%	5-19
Other / suppressed	20	1.4%	<5

Non-migrant residents

Educational attainment (people aged 25 and over)
Category	Estimate	Share	Sample
No schooling or incomplete elementary	7,195	60.6%	>=500
Completed high school, incomplete higher education	2,270	19.1%	100-499
Completed elementary, incomplete high school	1,470	12.4%	100-499
Completed higher education	930	7.8%	50-99

Household income per capita (in 2022 minimum wages)
Category	Estimate	Share	Sample
½ to 1 minimum wage	6,805	33.4%	>=500
Up to ¼ of a minimum wage	6,180	30.4%	>=500
¼ to ½ minimum wage	4,940	24.3%	>=500
1 to 2 minimum wages	1,790	8.8%	100-499
More than 2 minimum wages	640	3.1%	50-99

Age and sex
Category	Estimate	Share	Sample
Ages 40–59, male	2,405	12.9%	100-499
Ages 40–59, female	2,240	12.0%	100-499
Ages 25–39, male	2,155	11.6%	100-499
Ages 25–39, female	1,990	10.7%	100-499
Ages 15–24, male	1,800	9.7%	100-499
Ages 5–14, male	1,755	9.4%	100-499
Ages 15–24, female	1,645	8.8%	100-499
Ages 5–14, female	1,565	8.4%	100-499
Ages 60 and over, male	1,565	8.4%	100-499
Ages 60 and over, female	1,500	8.1%	100-499

Commuting (work and study)

Commuting indicators for Riachão/MA
Employed persons (aged 10 and over)	5,995
Commute out to work in another municipality	345
Commute in from another municipality to work here	210
Net commuting	−135
Out-commuting rate (%)	5.78
Commuting attraction index	0.962
Median commuting time	85 min

Open Riachão/MA in the interactive atlas →

Methodological note

Estimates from the sample microdata of the 2022 Demographic Census (IBGE, controlled access), fixed-date migration question (residence on July 31, 2017 compared with residence on July 31, 2022). Every estimate is rounded to multiples of 5 and has passed statistical disclosure control (no cell with fewer than 5 people or 3 sampled households). See the full methodology and the glossary.

How to cite this page

Daniel Pessini Sobreira. Atlas da migração interna no Brasil [Atlas of internal migration in Brazil]: Riachão/MA. Data from the 2022 Demographic Census (IBGE). Data version: 2026-10-01. Available at: https://atlas-da-migracao.github.io/en/municipio/riachao-ma-2109502/. Dataset DOI: https://doi.org/10.5281/zenodo.22469791.