Migration in Porto Alegre do Piauí/PI (2017–2022)

Porto Alegre do Piauí/PI had a reference population (aged 5 or over in 2022) of 2,165 people. In the 2017–2022 five-year period, the municipality received 155 in-migrants and lost 280 out-migrants to other municipalities in Brazil, resulting in a net migration of −130 people (−59.44 per 1,000 population) and a migration effectiveness index (IEM) of −0.296. This classifies the municipality, for the period, as one of migratory depletion. In addition, 5 arrived with an unreported origin and 0 came from abroad.

Indicators

Migration indicators for Porto Alegre do Piauí/PI, 2017–2022
Indicator	Estimate	95% CI	Precision
In-migrants	155	81 to 229	use with caution
Out-migrants	280	153 to 407	use with caution
Net migration	−130	−277 to 17	not classified
Net migration rate, TLM (per 1,000 pop.)	−59.44	-	-
Migration effectiveness index (IEM)	−0.296	-	-

Sample of in-migrants: 50-99 observations. Sample of out-migrants: 20-49 observations. 95% confidence interval computed as estimate ± 1.96 × standard error.

Top origins and destinations

Top 10 origins of in-migrants to Porto Alegre do Piauí/PI
Origin	People	Precision
Marcos Parente/PI · view pair in the atlas	35	low precision
Antônio Almeida/PI · view pair in the atlas	20	low precision

Top 10 destinations of out-migrants from Porto Alegre do Piauí/PI
Destination	People	Precision
Marcos Parente/PI · view pair in the atlas	25	low precision

Profile of migrants and residents

In-migrants (arrivals)

Migrant type
Category	Estimate	Share	Sample
First move from municipality of birth	115	76.7%	20-49
Multi-step migration	30	20.0%	5-19
Other / suppressed	5	3.3%	<5

Educational attainment (people aged 25 and over)
Category	Estimate	Share	Sample
Completed elementary, incomplete high school	30	35.3%	5-19
Completed high school, incomplete higher education	20	23.5%	5-19
No schooling or incomplete elementary	20	23.5%	5-19
Completed higher education	15	17.6%	5-19

Household income per capita (in 2022 minimum wages)
Category	Estimate	Share	Sample
¼ to ½ minimum wage	45	30.0%	5-19
Up to ¼ of a minimum wage	40	26.7%	5-19
½ to 1 minimum wage	35	23.3%	5-19
1 to 2 minimum wages	20	13.3%	5-19
Other / suppressed	10	6.7%	<5

Age and sex
Category	Estimate	Share	Sample
Ages 15–24, female	30	20.7%	5-19
Ages 25–39, male	25	17.2%	5-19
Other / suppressed	20	13.8%	5-19
Ages 15–24, male	20	13.8%	5-19
Ages 40–59, female	20	13.8%	5-19
Ages 25–39, female	20	13.8%	5-19
Ages 40–59, male	10	6.9%	5-19

Out-migrants (departures)

Migrant type
Category	Estimate	Share	Sample
First move from municipality of birth	140	49.1%	20-49
Multi-step migration	105	36.8%	5-19
Return to municipality of birth	40	14.0%	5-19

Educational attainment (people aged 25 and over)
Category	Estimate	Share	Sample
Other / suppressed	55	36.7%	5-19
No schooling or incomplete elementary	50	33.3%	5-19
Completed high school, incomplete higher education	45	30.0%	5-19

Household income per capita (in 2022 minimum wages)
Category	Estimate	Share	Sample
½ to 1 minimum wage	140	49.1%	20-49
¼ to ½ minimum wage	75	26.3%	5-19
Other / suppressed	70	24.6%	5-19

Age and sex
Category	Estimate	Share	Sample
Ages 25–39, male	75	26.8%	5-19
Ages 25–39, female	50	17.9%	5-19
Other / suppressed	45	16.1%	5-19
Ages 15–24, male	45	16.1%	5-19
Ages 15–24, female	35	12.5%	5-19
Ages 5–14, female	30	10.7%	5-19

Non-migrant residents

Educational attainment (people aged 25 and over)
Category	Estimate	Share	Sample
No schooling or incomplete elementary	795	59.3%	100-499
Completed high school, incomplete higher education	235	17.5%	50-99
Completed elementary, incomplete high school	195	14.6%	50-99
Completed higher education	115	8.6%	20-49

Household income per capita (in 2022 minimum wages)
Category	Estimate	Share	Sample
¼ to ½ minimum wage	850	38.5%	100-499
½ to 1 minimum wage	640	29.0%	100-499
Up to ¼ of a minimum wage	470	21.3%	100-499
1 to 2 minimum wages	185	8.4%	50-99
More than 2 minimum wages	60	2.7%	20-49

Age and sex
Category	Estimate	Share	Sample
Ages 40–59, male	270	13.5%	50-99
Ages 40–59, female	240	12.0%	50-99
Ages 25–39, female	235	11.8%	50-99
Ages 25–39, male	235	11.8%	50-99
Ages 15–24, male	185	9.2%	50-99
Ages 60 and over, male	180	9.0%	50-99
Ages 60 and over, female	180	9.0%	50-99
Ages 5–14, female	170	8.5%	50-99
Ages 5–14, male	160	8.0%	50-99
Ages 15–24, female	145	7.2%	20-49

Commuting (work and study)

Commuting indicators for Porto Alegre do Piauí/PI
Employed persons (aged 10 and over)	695
Commute out to work in another municipality	30
Commute in from another municipality to work here	20
Net commuting	−10
Out-commuting rate (%)	4.36
Commuting attraction index	0.986
Median commuting time	60 min

Open Porto Alegre do Piauí/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]: Porto Alegre do Piauí/PI. Data from the 2022 Demographic Census (IBGE). Data version: 2026-10-01. Available at: https://atlas-da-migracao.github.io/en/municipio/porto-alegre-do-piaui-pi-2208551/. Dataset DOI: https://doi.org/10.5281/zenodo.22469791.