Oriental Negros has a total population of 1,130,088, a household population of 1,128,634 in a 227,160 number of households. This data was taken on May 1, 2000 during the latest census conducted by the National Statistics Office (NSO).
Population by Municipalities
Guihulngan has the highest population from among the municipalities with 84,607. This was followed by Sta. Catalina with 67,197. It should be noted that Guihulngan is just second to Santa Catalina in terms of total land area since it has only 422.75 sq.kms. while Santa Catalina has 523.1. In this case, the size of a municipality doesn't affect the number of its inhabitants. San Jose got the lowest population with only 15,665.
Population by Cities
Dumaguete, the capital city of the province got the highest total population with 102,265 followed by Bayawan City with 101,391 with only a slight difference of 874, that is less than a thousand.
In terms of land area Bayawan is the biggest from among the five (5) cities with 637.95 sq.kms. while Dumaguete is the smallest with only 55.8 sq.kms. and yet the most densely populated.
Population Growth Rate
The historical growth rate of the province’s population shows an erratic trend since 1903. The years between 1903 and 1939 showed an almost even growth. Then in the years 1939 to 1948, it dropped from 2.12% to 1.59%. This was during World War II (1941-1945) where families evacuated outside of the province and many civilians and soldiers died.
By 1960, growth rate shot up to 2.8%, the highest in 100 years but it declined to 1.94% in 1970. Again it rose to 2.57% in 1975 and slowed down to 2.05% in 1980 and 1.22% in 1990. In 1995, the population growth rate of the province again rose to 2.07% and declined to 1.89% in 2000.
Population density (per sq.km.)
Population density is expressed as the number of people per unit of land area. The total land area of Oriental Negros is 5,402.30 square kilometers with a total population of 1,130,088 in 2000 census. Computing provincial density, it yields 209.18 people per square kilometer.
Since 1990, Basay exhibits the least dense municipality in the province. In 2000, it has increased from 74.58 in 1990 to 89.84 people per square kilometer.
Sta. Catalina, another town in the south, placed second to Basay for being the least dense with only 128.45 people per square kilometer in 2000. From 102.39 in 1990, it has increased its population density by 26.06 people per square kilometer in 2000.
Dumaguete City being an urban center and the capital city of the province has the highest density among the five (5) cities since 1990. From 1,438.39 in 1990, it increased to 1,832.70 people per square kilometer in 2000, that means an increase of 394.31 people per square kilometer
Oriental Negros has a population density of 171.20 people per square kilometer in 1990 garnering an increase of 37.98 in the year 2000 where its population density is 209.18 people per square kilometer.
Sex and Age Structure
The male population reached 569,917 or 50.43%. In this presentation, the male populace dominates that of the female by 9,746 or 0.86%. Female population reached to 560,171 or 49.57%.
The 2000 population showed a sex ratio of 101.7 (no. of males per 100 females). In 1990, population showed a sex ratio of 101.03 while in 1995 the sex ratio is 102.0 males for every 100 females.
Population by Age Groups
Presidential Decree No. 603 or The Child and Youth Welfare Code is a national law on child protection and welfare. Children under this law are those aging below 18. Age group belonging to 0-17 reached 510,316 while 18 and over totaled 619,772. Table 15 is a presentation of the Total Population by Single Year Age Classification and Sex in 2000.
Table 16 shows that there is a declining trend of population within 0-14 years old from 1975 with 45.52% to 2000 with 38.65%. Meanwhile, the 15 to 64 years old showed a gradual increase that is from 51.76% in 1975 to 56.82% in 2000.
The age group of 65 and over is increasing as well from 2.72% in 1975 to 4.53% in the year 2000.