a. Legislative Districts and Apportionment

Legislative Districts and Apportionment

Concept

Legislative districts are the territorial constituencies from which district representatives are elected to the House of Representatives. The Constitution directs that districts be apportioned among the provinces, cities, and the Metropolitan Manila area according to their respective populations and on the basis of a uniform and progressive ratio. (Art. VI, Sec. 5, 1987 Const.)¹

Governing provisions

Article VI, Section 5 of the Constitution governs district apportionment, the territorial character of districts, minimum representation for qualifying cities and provinces, and reapportionment following a census. Article VI, Section 6 states the qualifications for membership in the House, including requirements specific to district representatives. (Art. VI, Sec. 5, 1987 Const.)¹ (Art. VI, Sec. 6, 1987 Const.)²

Requisites / Rules

• Population basis. Districts must be apportioned among provinces, cities, and the Metropolitan Manila area in accordance with the number of their respective inhabitants, using a uniform and progressive ratio. (Art. VI, Sec. 5, 1987 Const.)¹
• Territory. As far as practicable, each legislative district must comprise contiguous, compact, and adjacent territory. The phrase “as far as practicable” qualifies this territorial standard. (Art. VI, Sec. 5, 1987 Const.)¹
• Minimum representation. Each province has at least one representative. A city has at least one representative if its population is at least 250,000. The provision states the population threshold for cities, but not for provinces. (Art. VI, Sec. 5, 1987 Const.)¹
• Reapportionment. Within three years following the return of every census, Congress must reapportion legislative districts based on the standards in Article VI, Section 5. (Art. VI, Sec. 5, 1987 Const.)¹

Distinctions

A district representative is elected from a legislative district; a party-list representative is elected through the separate party-list system. Consistently, a voter’s first vote is for a candidate for the House in the voter’s legislative district, while the second is for a party, organization, or coalition under the party-list system. (Art. VI, Sec. 5, 1987 Const.)¹ (Sec. 10, Rep. Act No. 7941)³

The qualifications in Article VI, Section 6 apply to House members, but its district voter-registration and residency requirements expressly except party-list representatives. Thus, for a district representative, the provision requires registration as a voter in the district and residence there for at least one year immediately preceding election day, in addition to its other stated qualifications. (Art. VI, Sec. 6, 1987 Const.)²

Key doctrines

The governing text ties apportionment to inhabitants, imposes a practicable territorial standard, guarantees the stated minimum representation, and requires Congress to revisit districts after each census. These are distinct checks: satisfying the minimum-representation rule does not remove the separate constitutional directions on population, territory, and reapportionment. (Art. VI, Sec. 5, 1987 Const.)¹

Exceptions

The territorial requirement is qualified by “as far as practicable.” The city population threshold does not qualify a province’s entitlement to at least one representative, and the district-specific voter-registration and residency requirements do not apply to party-list representatives. (Art. VI, Sec. 5, 1987 Const.)¹ (Art. VI, Sec. 6, 1987 Const.)²

Bar tip

For an apportionment question, check population and ratio, practicable territorial continuity, minimum representation, and the census-based duty to reapportion. Do not apply the 250,000 city threshold to provinces. (Art. VI, Sec. 5, 1987 Const.)¹