Record Atlas
Flags of Costa Rica

Family research · Phase 9 of the world atlas

Flags of Costa Rica

From over two thousand years of pre-Columbian farming societies and the monumental site of Guayabo, through indigenous resistance that held off full Spanish pacification into the 1560s, nearly three centuries as the poorest and most peripheral backwater of the Captaincy General of Guatemala, a joint 1821 independence, brief annexation to the First Mexican Empire, a decade and a half in the Federal Republic of Central America, to a decisive 1848 redesign that broke Costa Rica's flag away from its neighbors' shared blue-white-blue for good.

Costa Rica is the odd one out among its former federation partners: rather than keeping the plain blue-white-blue banner, it added a dark blue and a broad red stripe in 1848, a change credited to First Lady Pacifíca Fernández and inspired partly by the French tricolor — the one clean visual break in this hub's otherwise unified federation-descended lineage.

Scope of this page: the territory of present-day Costa Rica, c. 1000 BCE–present, seven political entities. The map below traces the whole country, which was never itself internally partitioned.

One territory, seven eras

Costa Rica’s own real border, traced whole — the country’s modern territory has never itself been split between rival governments. Press play, or drag the slider, to watch who held it, era to era.

This is a single-region page, not a partition map. Costa Rica passed through a Spanish province, a Mexican annexation, and a Central American federation before becoming its own republic in 1848 — but its own territory was never itself divided between competing governments the way some other pages in this atlas track. What changes here is only who held the whole territory.
c. 1000 BCE – 1200 CE
NICARAGUA CARIBBEAN SEA PANAMA PACIFIC OCEAN COSTA RICA

Real traced border (johan/world.geo.json) — no internal partition, per the rule box above.

How we know this. 7 of 7 eras on this page carry an evidence panel (3 attested, 2 placeholder image, 2 not yet checked). Only the ones marked attested are confirmed by the sources named under them; where sources disagree or a claim could not be confirmed, the panel says so.
blue-white-red(double)-white-blue, adopted 1848, unchanged in essence since
1848 – present

Republic of Costa Rica

Republic, independentJosé María Castro MadrizRoman Catholic (constitutionally established)
Migration & conquest:Immigration: Jamaican railway & banana laborers (1870s–)Immigration: Nicaraguan migrants (1980s–)

Who & why: President José María Castro Madriz formally proclaims Costa Rica a republic on 31 August 1848, and on 29 September 1848 adopts a new flag — credited to First Lady Pacifíca Fernández Oreamuno — that keeps the outer blue and white of the old federation banner but inserts a broad central red stripe, consciously echoing the French tricolor's liberty, equality, fraternity. The coat of arms is added to the state flag and revised several times over the following century (notably 1906 and 1964) without altering the stripe pattern. Costa Rica abolishes its standing army in 1948 after a brief civil war and has remained one of the region's most stable democracies since.

What it represents: the blue, white, red, white, blue flag whose current design was created on 29 September 1848 at the suggestion of Pacífica Fernández Oreamuno, wife of President José María Castro Madriz, who proposed adding the red stripe; its colours are linked to the ideals of the 1848 French Revolution (freedom, equality, brotherhood). The state flag with the coat of arms was adopted on 27 November 1906 and the arms were altered on 21 October 1964; FOTW says the 1964 law requires the official flag to bear the arms.

Attestedhow we know this

Wikipedia: current design 29 September 1848 at Pacífica Fernández's suggestion; 27 November 1906 state flag with arms; 21 October 1964 arms altered; colours linked to the ideals of 1848. FOTW: current design 1848; 27 November 1906; 21 October 1964 law.

Not established: FOTW does not give the day or credit in 1848 beyond naming two candidates.

Paint guide
Proportions3:5; five horizontal stripes in a 1:1:2:1:1 ratio.
LayoutBlue, white, red (double width), white, blue horizontal stripes; the state variant adds a coat of arms on the red stripe, offset toward the hoist (omitted here for the plain civil flag).
Blue#002B7F
White#F4EFE1
Red#CE1126
plain blue-white-blue, kept briefly after seceding from the federation
1838 – 1848

Sovereign state, transitional (pre-redesign)

Republic, earlyBraulio CarrilloRoman Catholic (traditional continuation)

Who & why: Costa Rica declares itself a fully sovereign state on 15 November 1838 as the Federal Republic disintegrates, but keeps flying the federation's own blue-white-blue banner for another decade while its political institutions stabilize under the Jefe de Estado system, until the 1848 declaration of a republic prompts the new flag design.

What it represents: Wikipedia's flag list shows a Costa Rican flag from 22 November 1824 to 15 November 1840 and a white-blue-white version from 21 April 1840 to 20 April 1842; Flags of the World lists a flag in unofficial use in 1838-1840, the 1840 flag (with a state version bearing the shield), a flag in use after September 1842 and the tricolour proclaimed on 29 September 1848. A single plain blue-white-blue flag carried on until 1848, as this page earlier said, is therefore not supported, and the colours of some of these flags are given only in images.

Not yet checked against sourceshow we know this

Wikipedia (list of Costa Rican flags): a flag from 22 November 1824 to 15 November 1840 and a white-blue-white flag from 21 April 1840 to 20 April 1842. FOTW (1838-1848): a flag 'in use 1838-1840 (unofficial)'; the flag of 21 April 1840 with a state version bearing the shield and a civil version without it, abolished 20 April 1842; the 22 November 1824 flag 're-established' and in use until 12 November 1848 though out of use after September 1842; a 1842 flag in use after September 1842; and the tricolour with a shield proclaimed on 29 September 1848 (first hoisted 12 November 1848).

Not established: Both sources show several flags in 1838-1848 rather than one plain blue-white-blue flag, and FOTW's colour descriptions for 1838 and 1842 are given only in images; the page's claim is contradicted but not replaced by a documented single flag. The 1840 end date of the 1824 flag (Wikipedia) differs from FOTW's note that it was restored and used to 1848.

Paint guide
ProportionsNo fixed civil ratio recorded; shown at 3:2.
LayoutBlue, white, blue horizontal triband, plain field.
Blue#0047AB
White#F4EFE1
the Federal Republic's own blue-white-blue, five-volcano arms centered
1823 – 1838

Federal Republic of Central America (member state)

Federation memberManuel José ArceRoman Catholic (constitutionally established)

Who & why: after breaking from the First Mexican Empire, the five former Guatemalan provinces — including Costa Rica, the poorest and most sparsely populated — form the United Provinces of Central America on 1 July 1823, reorganized as the Federal Republic in 1824. Costa Rica's remoteness from the federal capital and its comparatively small, agrarian population keep it a minor, largely disengaged partner as the union splinters through the 1830s; it declares itself sovereign on 15 November 1838.

What it represents: the blue-white-blue triband adopted by the federation in 1823, with a central coat of arms — five volcanoes for the five member states beneath a rainbow and a Phrygian liberty cap on a staff.

Attestedhow we know this

Wikipedia's «Flag of Central America» gives adoption in 1823, 2000 and relinquishment in 1839, within a year of this era's 1823 and 1838. The Flags of the World page that article links also carries 1838, and has 1823 next to a word about adopting.

Not established: Only the dates were compared. The Flags of the World page was matched on the two years appearing in its text and on one of them sitting beside the word adopt, introduce, establish or the like; it was not read for what it says about this flag. The design and the swatch colours were not checked against a specification.

Paint guide
ProportionsNo fixed civil ratio recorded; shown at 3:2.
LayoutBlue, white, blue horizontal triband; five stylized volcano peaks, rainbow arc, and liberty cap centered on the white stripe.
Blue#0047AB
White#F4EFE1
Volcano ink#204B5C
green-white-red First Mexican Empire tricolor, simplified crowned-eagle badge
1821 – 1823

Annexation to the First Mexican Empire

Empire (annexed)Agustín de IturbideRoman Catholic (exclusive, per the Plan de Iguala)
Ruling house:House of Iturbide

Who & why: the Captaincy General of Guatemala, including Costa Rica, declares independence from Spain jointly with its neighbors on 15 September 1821; news of the declaration does not reach isolated Costa Rica for weeks. The territory is nonetheless nominally absorbed into Agustín de Iturbide's Mexican Empire along with the rest of the isthmus, a distant and largely nominal arrangement that ends with the empire's own collapse in 1823.

What it represents: the green-white-red tricolor of the First Mexican Empire is shown. Flags of the World instead describes a blue-yellow-blue flag of the independence fighters who opposed union with Mexico, used from September 1821 to May 1822 and again from 10 May to 6 June 1823, and a new flag hoisted on 6 June 1823 after independence from Mexico; Wikipedia's list includes the Mexican Empire flag for 1821-1823 and a Costa Rica flag for September 1821 to June 1823 without describing either. The sources read do not show the Mexican tricolour flying over Costa Rica.

Not yet checked against sourceshow we know this

FOTW (1821-1822): a blue (pale) over yellow over blue tricolour was used between 1821 and 1822, the flag of the independence fighters who opposed union with Mexico, used September 1821-May 1822 and from 10 May to 6 June 1823; FOTW (1823): the flag hoisted on 6 June 1823 after independence from Mexico (proclaimed 10 May 1823). Wikipedia's list of historical flags includes the First Mexican Empire flag for 1821-1823 and a Costa Rica flag from September 1821 to 6 June 1823.

Not established: FOTW describes a Costa Rican blue-yellow-blue flag opposed to union with Mexico and says only that it 'perhaps' stayed in use during the Mexican domination of 1822-23; no source read shows the green-white-red Mexican Empire tricolour flown over Costa Rica.

Paint guide
Proportions4:7, three equal vertical bands.
LayoutGreen, white, red vertical triband; crowned eagle badge on the white band, simplified here as a plain roundel.
Green#006341
White#F4EFE1
Red#CE1126
Cross of Burgundy on white — Spanish colonial banner
1564 – 1821

Spanish colonial rule (Captaincy General of Guatemala)

ColonyJuan Vásquez de CoronadoRoman Catholic (Spanish Crown, exclusive)
Ruling house:House of HabsburgHouse of Bourbon

Who & why: Juan Vásquez de Coronado founds Cartago in 1564, establishing the first durable Spanish settlement after decades of failed attempts and hard indigenous resistance that had continued into the 1560s. Made a province of the Captaincy General of Guatemala, Costa Rica remains the poorest and most peripheral corner of the whole colony — short on exploitable indigenous labor or mineral wealth, its settler population survives mostly through small-scale subsistence farming rather than plantation or mining economies, earning it a lasting reputation as a colonial backwater.

What it represents: the Cross of Burgundy on a plain field is shown. Wikipedia's list of historical flags gives the Cross of Burgundy for 1541-1821 and the 1785 Spanish flag for 1785-1821, saying various Spanish Empire flags covered the land until 1821; the sources read do not say these flew specifically over Costa Rica or the Captaincy General.

Attestedhow we know this

Wikipedia (list of historical flags of Costa Rica): the Cross of Burgundy for 1541-1821 and the Spanish flag of 1785 for 1785-1821, various Spanish Empire flags covering the land until 1821. FOTW (Burgundy Cross Flag): the red saltire raguly on white was the Spanish ensign from 1506 and the Spanish military flag from the 16th century to 1843. U.S. National Park Service: this flag was carried by ships and flown over the fortresses that guarded Spain's New World possessions until the red-and-gold ensign of 1785.

Not established: Only Wikipedia's list ties the cross to Costa Rica, and it gives 1541 rather than 1564; FOTW and the Park Service describe Spanish use generally, and from 1785 the red-yellow-red flag replaced it at sea. No source read says which Spanish flag flew in the Captaincy General of Guatemala specifically.

Paint guide
ProportionsNo fixed ratio; shown at 3:2.
LayoutWhite/cream field, red diagonal saltire (simplified here as straight bars; the historical cross has a jagged, branch-like edge).
Field white#F4EFE1
Cross red#A4302A
NO FLAG DOCUMENTED
placeholder maroon field — pre-conquest and early-resistance era, no flag survives
c. 1200 – 1564

Indigenous chiefdoms and early resistance

Indigenous kingdomNo single ruler documentedIndigenous polytheism (no unified state)

Who & why: small, scattered indigenous chiefdoms — including Hueítares, Borúcas, and Chorotega groups — occupy the territory with no single unifying polity when Christopher Columbus first sights the coast in 1502. Spanish attempts at conquest and settlement repeatedly fail through the early 16th century in the face of disease, difficult terrain, and sustained indigenous resistance; durable Spanish control is not established until Cartago's founding in 1564, making Costa Rica the last-pacified territory in this hub.

What it represents: no securely documented flag or banner survives from this era; the region's indigenous chiefdoms used painted and feathered devices rather than fixed heraldic flags, and none can be attributed to any specific Costa Rican group with confidence. Shown here honestly blank rather than invented.

Placeholder imagehow we know this

This page's own caption calls the image a placeholder: «placeholder maroon field — pre-conquest and early-resistance era, no flag survives».

Not established: Whether a flag, banner or standard existed in this period was not checked. The colour shown is not evidence of one.

Paint guide
ProportionsN/A — no attested flag.
NO FLAG DOCUMENTED
placeholder maroon field — early farming societies and the Diquís culture, no flag survives
c. 1000 BCE – 1200 CE

Early Costa Rica: Guayabo & the Diquís Culture

Pre-ceramic & early farming societiesNo single ruler documentedIndigenous polytheism (no unified state)
Migration & conquest:Contact: Mesoamerican & Isthmo-Colombian trade networks

Who & why: settled village life and farming appear in this territory by roughly 1000 BCE, and by the early centuries CE its people are raising the earthen mounds, paved causeways, aqueducts, and tombs of Guayabo, the largest known pre-Columbian settlement in Costa Rica, occupied into the 1400s. Farther south, the Diquís culture of the Palmar Sur region carves and moves the famous granite stone spheres (some over 15 tons) between roughly 600 and 1000 CE, a genuine engineering feat now recognized on Guayabo's own UNESCO World Heritage listing (inscribed 2014). No single state ever unifies the territory in this period; it remains organized into separate chiefdoms until Spanish contact.

What it represents: no securely documented flag or banner survives from this era, many centuries before the small chiefdoms era with which this page's own timeline previously began. Shown here honestly blank rather than invented.

World context: Guayabo's earliest occupation is roughly contemporary with the height of the Olmec civilization in Mesoamerica and Egypt's Third Intermediate Period, and the Diquís stone spheres are being carved and moved while the Classical Maya cities to the north are at their peak and the Angkor temple complex in Cambodia is still centuries from being built; Guayabo's own long occupation only ends as the Khmer Empire is completing Angkor Wat (finished c. 1150) on the other side of the world.

Placeholder imagehow we know this

This page's own caption calls the image a placeholder: «placeholder maroon field — early farming societies and the Diquís culture, no flag survives».

Not established: Whether a flag, banner or standard existed in this period was not checked. The colour shown is not evidence of one.

Paint guide
ProportionsN/A — no attested flag.

Reading the tags

Indigenous kingdom — pre-conquest polity
Colony — Spanish provincial rule
Empire (annexed) — absorbed into the First Mexican Empire
Federation member — crown/union shared with other states
Republic, early — sovereign, pre-1848 flag
Republic, independent — sovereign under the modern flag
Leader — the named ruler most associated with the era's start
State religion — the official/established faith, not the population's

More of the atlas

This page is one lineage in a larger set. See the region-wide map and the other countries here:

Compiled from Wikipedia, Flags of the World (fotw.info / crwflags.com), and Britannica. Colors are close historical approximations for painting reference; pre-19th-century swatches are informed reconstructions, not official specifications.