Migration in Barro Duro/PI (2017–2022)

Barro Duro/PI had a reference population (aged 5 or over in 2022) of 6,205 people. In the 2017–2022 five-year period, the municipality received 350 in-migrants and lost 415 out-migrants to other municipalities in Brazil, resulting in a net migration of −65 people (−10.57 per 1,000 population) and a migration effectiveness index (IEM) of −0.086. This classifies the municipality, for the period, as one of migratory depletion. In addition, 5 arrived with an unreported origin and 5 came from abroad.

Indicators

Migration indicators for Barro Duro/PI, 2017–2022
Indicator	Estimate	95% CI	Precision
In-migrants	350	255 to 445	good
Out-migrants	415	231 to 599	use with caution
Net migration	−65	−272 to 142	not classified
Net migration rate, TLM (per 1,000 pop.)	−10.57	-	-
Migration effectiveness index (IEM)	−0.086	-	-

Sample of in-migrants: 100-499 observations. Sample of out-migrants: 50-99 observations. 95% confidence interval computed as estimate ± 1.96 × standard error.

Top origins and destinations

Top 10 origins of in-migrants to Barro Duro/PI
Origin	People	Precision
Teresina/PI · view pair in the atlas	70	use with caution
Passagem Franca do Piauí/PI · view pair in the atlas	50	low precision
Água Branca/PI · view pair in the atlas	15	low precision
Beneditinos/PI · view pair in the atlas	10	low precision

Top 10 destinations of out-migrants from Barro Duro/PI
Destination	People	Precision
São Paulo/SP · view pair in the atlas	115	low precision
Olho D'Água do Piauí/PI · view pair in the atlas	50	low precision
Passagem Franca do Piauí/PI · view pair in the atlas	35	low precision

Profile of migrants and residents

In-migrants (arrivals)

Migrant type
Category	Estimate	Share	Sample
First move from municipality of birth	145	41.4%	20-49
Return to municipality of birth	105	30.0%	20-49
Multi-step migration	100	28.6%	20-49

Educational attainment (people aged 25 and over)
Category	Estimate	Share	Sample
No schooling or incomplete elementary	80	41.0%	20-49
Completed high school, incomplete higher education	60	30.8%	20-49
Completed higher education	30	15.4%	5-19
Completed elementary, incomplete high school	25	12.8%	5-19

Household income per capita (in 2022 minimum wages)
Category	Estimate	Share	Sample
Up to ¼ of a minimum wage	120	34.3%	20-49
¼ to ½ minimum wage	105	30.0%	20-49
½ to 1 minimum wage	90	25.7%	20-49
1 to 2 minimum wages	20	5.7%	5-19
Other / suppressed	15	4.3%	<5

Age and sex
Category	Estimate	Share	Sample
Ages 25–39, male	60	16.9%	20-49
Ages 15–24, female	55	15.5%	5-19
Ages 25–39, female	55	15.5%	5-19
Ages 5–14, male	45	12.7%	5-19
Ages 5–14, female	35	9.9%	5-19
Ages 40–59, female	35	9.9%	5-19
Ages 40–59, male	25	7.0%	5-19
Other / suppressed	25	7.0%	5-19
Ages 15–24, male	20	5.6%	5-19

Out-migrants (departures)

Migrant type
Category	Estimate	Share	Sample
First move from municipality of birth	330	79.5%	50-99
Multi-step migration	75	18.1%	20-49
Other / suppressed	10	2.4%	<5

Educational attainment (people aged 25 and over)
Category	Estimate	Share	Sample
No schooling or incomplete elementary	85	34.7%	20-49
Completed high school, incomplete higher education	80	32.7%	5-19
Completed elementary, incomplete high school	75	30.6%	5-19
Other / suppressed	5	2.0%	<5

Household income per capita (in 2022 minimum wages)
Category	Estimate	Share	Sample
½ to 1 minimum wage	160	38.6%	20-49
¼ to ½ minimum wage	125	30.1%	20-49
More than 2 minimum wages	55	13.3%	5-19
1 to 2 minimum wages	45	10.8%	5-19
Up to ¼ of a minimum wage	30	7.2%	5-19

Age and sex
Category	Estimate	Share	Sample
Ages 25–39, female	70	16.9%	5-19
Ages 25–39, male	65	15.7%	5-19
Ages 5–14, female	55	13.3%	5-19
Ages 40–59, female	55	13.3%	5-19
Ages 15–24, male	50	12.0%	5-19
Ages 15–24, female	40	9.6%	5-19
Ages 40–59, male	30	7.2%	5-19
Ages 5–14, male	25	6.0%	5-19
Other / suppressed	25	6.0%	5-19

Non-migrant residents

Educational attainment (people aged 25 and over)
Category	Estimate	Share	Sample
No schooling or incomplete elementary	2,230	56.1%	>=500
Completed high school, incomplete higher education	865	21.8%	100-499
Completed elementary, incomplete high school	480	12.1%	100-499
Completed higher education	400	10.1%	100-499

Household income per capita (in 2022 minimum wages)
Category	Estimate	Share	Sample
½ to 1 minimum wage	2,115	33.7%	>=500
¼ to ½ minimum wage	1,830	29.1%	>=500
Up to ¼ of a minimum wage	1,615	25.7%	>=500
1 to 2 minimum wages	595	9.5%	100-499
More than 2 minimum wages	125	2.0%	20-49

Age and sex
Category	Estimate	Share	Sample
Ages 40–59, female	790	13.5%	100-499
Ages 40–59, male	760	13.0%	100-499
Ages 25–39, female	670	11.5%	100-499
Ages 60 and over, female	640	10.9%	100-499
Ages 25–39, male	620	10.6%	100-499
Ages 15–24, male	520	8.9%	100-499
Ages 60 and over, male	490	8.4%	100-499
Ages 5–14, male	460	7.9%	100-499
Ages 5–14, female	455	7.8%	100-499
Ages 15–24, female	440	7.5%	100-499

Commuting (work and study)

Commuting indicators for Barro Duro/PI
Employed persons (aged 10 and over)	1,735
Commute out to work in another municipality	420
Commute in from another municipality to work here	50
Net commuting	−375
Out-commuting rate (%)	24.30
Commuting attraction index	0.771
Median commuting time	30 min

Open Barro Duro/PI 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]: Barro Duro/PI. Data from the 2022 Demographic Census (IBGE). Data version: 2026-10-01. Available at: https://atlas-da-migracao.github.io/en/municipio/barro-duro-pi-2201408/. Dataset DOI: https://doi.org/10.5281/zenodo.22469791.