Updates: 
The 1981 census data were attributed to the wrong year. I have fixed the error now.
Country overview: 
| Short name | SAO TOME AND PRINCIPE |
| ISO code | ST |
| FIPS code | TP |
| Language | Portuguese (pt) |
| Time zone | +0 |
| Capital | São Tomé |
São Tomé and Príncipe was a Portuguese colony at the beginning of the 20th century. In 1951 it was made an overseas province
of Portugal. It became independent on 1975-07-12.
Other names of country: 
- Danish: São Tomé og Príncipe, Den demokratiske republik Sao Tomé og Principe (formal)
- Dutch: Sint Tome en Principe, São Tomé en Principe, Democratische Republiek Sao Tomé en Principe (formal)
- English: Democratic Republic of Sao Tome and Principe (formal)
- Finnish: São Tomé ja Príncipe
- French: Sao Tomé-et-Principe m
- German: São Tomé und Príncipe n
- Icelandic: Saó Tóme og Prinsípe
- Italian: São Tomé e Príncipe
- Norwegian: Den demokratiske republikk São Tomé og Príncipe (formal) (Bokmål), Den demokratiske republikken São Tomé og Príncipe (formal) (Nynorsk), São Tomé og Príncipe
- Portuguese: São Tomé e Príncipe, República f Democrática de São Tomé e Príncipe (formal)
- Russian: Демократическая Республика Сан-Томе и Принсипи (formal)
- Spanish: Santo Tomé y Príncipe
- Swedish: São Tomé och Príncipe
- Turkish: Sao Tome ve Principe Demokratik Cumhuriyeti (formal)
Origin of name: 
São Tomé after Saint Thomas
Primary subdivisions: 
Sao Tome and Principe is divided into two concelhos (municipalities).
| Municipality | HASC | ISO | FIPS | Pop-2006 | Area(km.²) | Area(mi.²) | Capital |
| Príncipe | ST.PR | P | TP01 | 6,737 | 142 | 55 | Santo António |
| São Tomé | ST.ST | S | TP02 | 145,175 | 859 | 332 | São Tomé |
| 2 municipalities | 151,912 | 1,001 | 387 | |
- HASC: Hierarchical administrative subdivision codes.
- ISO: Codes from ISO 3166-2.
- FIPS: Codes from FIPS PUB 10-4.
- Pop-2006: 2006 estimates (source [1]).
- Pop-2001: 2001-08-25 census (source [3]).
- Pop-1991: 1991-08-04 census.
- Pop-1950: 1950-12-15 census (source [4]).
|
Further subdivisions:
See the Districts of São Tomé and Príncipe page.
The municipalities are further subdivided into distritos (districts). Príncipe is coextensive with its district, but São
Tomé has six districts.
Territorial extent: 
- Príncipe consists of the islands of Príncipe, Caroço, Bombom, and the Pedras Tinhosas.
- São Tomé consists of São Tomé and Rôlas islands.
Population history:
| Municipality | 1950-12-15 | 1960-12-15 | 1970-09-30 | 1981-08-15 | 1991-08-04 | 2001-08-25 |
| Príncipe | 4,332 | 4,574 | 4,599 | 5,255 | 5,639 | 5,966 |
| São Tomé | 55,827 | 59,102 | 60,032 | 91,356 | 114,507 | 131,633 |
| Total | 60,159 | 63,676 | 73,631 | 96,611 | 120,146 | 137,599 |
Sources: 1950 [4], 1960 [6], 1970 [7], 1981 [5], 1991 [8], 2001 [3]. The 1970 numbers don't add up, and the most likely correction is
69,032.
Sources: 
- [1] São Tomé e Príncipe em Números - 2006
,
Instituto Nacional de Estatística (retrieved 2011-04-07).
- [2] United Nations House
website had
population estimates for 1997 (retrieved 2001-04-10).
- [3] Turner, Barry, ed. The Statesman's Yearbook, 2008 edition. Palgrave Macmillan, Basingstoke, Hants., 2007.
- [4] Demographic
Yearbook
, 7th Ed. Statistical Office of the United Nations, New York, 1955 (retrieved
2011-08-20).
- [5] Encyclopædia Britannica, 15th Edition, Chicago, 1984.
- [6] The Encyclopædia Britannica World Atlas, 1964 edition.
- [7] Paxton, John, ed. The Statesman's Yearbook, 1977-78 edition. St. Martin's Press, New York, 1977.
- [8] Hunter, Brian, ed. The Statesman's Yearbook, 1997-98 edition. St. Martin's Press, New York, 1997.