diff --git a/src/domain/countries.rs b/src/domain/countries.rs
new file mode 100644
index 0000000..e59ec80
--- /dev/null
+++ b/src/domain/countries.rs
@@ -0,0 +1,146 @@
+use std::collections::HashMap;
+use std::sync::LazyLock;
+
+static COUNTRY_MAP: LazyLock<HashMap<&'static str, &'static str>> = LazyLock::new(|| {
+    HashMap::from([
+        // Coffee-producing countries
+        ("ethiopia", "ET"),
+        ("colombia", "CO"),
+        ("kenya", "KE"),
+        ("brazil", "BR"),
+        ("guatemala", "GT"),
+        ("costa rica", "CR"),
+        ("rwanda", "RW"),
+        ("honduras", "HN"),
+        ("panama", "PA"),
+        ("mexico", "MX"),
+        ("el salvador", "SV"),
+        ("bolivia", "BO"),
+        ("peru", "PE"),
+        ("indonesia", "ID"),
+        ("india", "IN"),
+        ("vietnam", "VN"),
+        ("myanmar", "MM"),
+        ("china", "CN"),
+        ("papua new guinea", "PG"),
+        ("tanzania", "TZ"),
+        ("uganda", "UG"),
+        ("burundi", "BI"),
+        ("democratic republic of the congo", "CD"),
+        ("drc", "CD"),
+        ("congo", "CD"),
+        ("republic of the congo", "CG"),
+        ("yemen", "YE"),
+        ("nicaragua", "NI"),
+        ("ecuador", "EC"),
+        ("dominican republic", "DO"),
+        ("haiti", "HT"),
+        ("jamaica", "JM"),
+        ("thailand", "TH"),
+        ("laos", "LA"),
+        ("philippines", "PH"),
+        ("taiwan", "TW"),
+        // European roaster/cafe countries
+        ("united kingdom", "GB"),
+        ("uk", "GB"),
+        ("england", "GB"),
+        ("scotland", "GB"),
+        ("wales", "GB"),
+        ("northern ireland", "GB"),
+        ("germany", "DE"),
+        ("france", "FR"),
+        ("spain", "ES"),
+        ("italy", "IT"),
+        ("netherlands", "NL"),
+        ("belgium", "BE"),
+        ("denmark", "DK"),
+        ("sweden", "SE"),
+        ("norway", "NO"),
+        ("finland", "FI"),
+        ("switzerland", "CH"),
+        ("austria", "AT"),
+        ("portugal", "PT"),
+        ("ireland", "IE"),
+        ("poland", "PL"),
+        ("czech republic", "CZ"),
+        ("czechia", "CZ"),
+        ("greece", "GR"),
+        ("slovenia", "SI"),
+        ("croatia", "HR"),
+        ("romania", "RO"),
+        ("hungary", "HU"),
+        // North America
+        ("united states", "US"),
+        ("united states of america", "US"),
+        ("usa", "US"),
+        ("us", "US"),
+        ("canada", "CA"),
+        // Asia-Pacific
+        ("japan", "JP"),
+        ("south korea", "KR"),
+        ("korea", "KR"),
+        ("australia", "AU"),
+        ("new zealand", "NZ"),
+        ("singapore", "SG"),
+        // Other
+        ("south africa", "ZA"),
+        ("turkey", "TR"),
+        ("israel", "IL"),
+        ("united arab emirates", "AE"),
+        ("uae", "AE"),
+    ])
+});
+
+/// Maps a free-text country name to its ISO-3166-1 alpha-2 code.
+pub fn country_to_iso(name: &str) -> Option<&'static str> {
+    COUNTRY_MAP
+        .get(name.trim().to_lowercase().as_str())
+        .copied()
+}
+
+/// Converts an ISO-3166-1 alpha-2 code to a flag emoji using regional indicator symbols.
+pub fn iso_to_flag_emoji(code: &str) -> String {
+    code.chars()
+        .filter_map(|c| {
+            let upper = c.to_ascii_uppercase();
+            if upper.is_ascii_uppercase() {
+                char::from_u32(0x1F1E6 + (upper as u32 - 'A' as u32))
+            } else {
+                None
+            }
+        })
+        .collect()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn country_to_iso_normalises_case() {
+        assert_eq!(country_to_iso("Ethiopia"), Some("ET"));
+        assert_eq!(country_to_iso("ETHIOPIA"), Some("ET"));
+        assert_eq!(country_to_iso("  ethiopia  "), Some("ET"));
+    }
+
+    #[test]
+    fn country_to_iso_handles_aliases() {
+        assert_eq!(country_to_iso("United Kingdom"), Some("GB"));
+        assert_eq!(country_to_iso("UK"), Some("GB"));
+        assert_eq!(country_to_iso("England"), Some("GB"));
+    }
+
+    #[test]
+    fn country_to_iso_returns_none_for_unknown() {
+        assert_eq!(country_to_iso("Blend"), None);
+        assert_eq!(country_to_iso("Multiple Origins"), None);
+        assert_eq!(country_to_iso(""), None);
+    }
+
+    #[test]
+    fn iso_to_flag_emoji_produces_correct_flags() {
+        assert_eq!(iso_to_flag_emoji("GB"), "🇬🇧");
+        assert_eq!(iso_to_flag_emoji("US"), "🇺🇸");
+        assert_eq!(iso_to_flag_emoji("ET"), "🇪🇹");
+    }
+}
diff --git a/src/domain/country_stats.rs b/src/domain/country_stats.rs
index a672557..7a41abb 100644
--- a/src/domain/country_stats.rs
+++ b/src/domain/country_stats.rs
@@ -1,8 +1,7 @@
-use std::collections::HashMap;
-use std::sync::LazyLock;
-
 use serde::{Deserialize, Serialize};
 
+use super::countries::{country_to_iso, iso_to_flag_emoji};
+
 /// A single country's count for geographic statistics.
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct CountryStat {
@@ -51,147 +50,3 @@ impl GeoStats {
         }
     }
 }
-
-static COUNTRY_MAP: LazyLock<HashMap<&'static str, &'static str>> = LazyLock::new(|| {
-    HashMap::from([
-        // Coffee-producing countries
-        ("ethiopia", "ET"),
-        ("colombia", "CO"),
-        ("kenya", "KE"),
-        ("brazil", "BR"),
-        ("guatemala", "GT"),
-        ("costa rica", "CR"),
-        ("rwanda", "RW"),
-        ("honduras", "HN"),
-        ("panama", "PA"),
-        ("mexico", "MX"),
-        ("el salvador", "SV"),
-        ("bolivia", "BO"),
-        ("peru", "PE"),
-        ("indonesia", "ID"),
-        ("india", "IN"),
-        ("vietnam", "VN"),
-        ("myanmar", "MM"),
-        ("china", "CN"),
-        ("papua new guinea", "PG"),
-        ("tanzania", "TZ"),
-        ("uganda", "UG"),
-        ("burundi", "BI"),
-        ("democratic republic of the congo", "CD"),
-        ("drc", "CD"),
-        ("congo", "CD"),
-        ("republic of the congo", "CG"),
-        ("yemen", "YE"),
-        ("nicaragua", "NI"),
-        ("ecuador", "EC"),
-        ("dominican republic", "DO"),
-        ("haiti", "HT"),
-        ("jamaica", "JM"),
-        ("thailand", "TH"),
-        ("laos", "LA"),
-        ("philippines", "PH"),
-        ("taiwan", "TW"),
-        // European roaster/cafe countries
-        ("united kingdom", "GB"),
-        ("uk", "GB"),
-        ("england", "GB"),
-        ("scotland", "GB"),
-        ("wales", "GB"),
-        ("northern ireland", "GB"),
-        ("germany", "DE"),
-        ("france", "FR"),
-        ("spain", "ES"),
-        ("italy", "IT"),
-        ("netherlands", "NL"),
-        ("belgium", "BE"),
-        ("denmark", "DK"),
-        ("sweden", "SE"),
-        ("norway", "NO"),
-        ("finland", "FI"),
-        ("switzerland", "CH"),
-        ("austria", "AT"),
-        ("portugal", "PT"),
-        ("ireland", "IE"),
-        ("poland", "PL"),
-        ("czech republic", "CZ"),
-        ("czechia", "CZ"),
-        ("greece", "GR"),
-        ("slovenia", "SI"),
-        ("croatia", "HR"),
-        ("romania", "RO"),
-        ("hungary", "HU"),
-        // North America
-        ("united states", "US"),
-        ("united states of america", "US"),
-        ("usa", "US"),
-        ("us", "US"),
-        ("canada", "CA"),
-        // Asia-Pacific
-        ("japan", "JP"),
-        ("south korea", "KR"),
-        ("korea", "KR"),
-        ("australia", "AU"),
-        ("new zealand", "NZ"),
-        ("singapore", "SG"),
-        // Other
-        ("south africa", "ZA"),
-        ("turkey", "TR"),
-        ("israel", "IL"),
-        ("united arab emirates", "AE"),
-        ("uae", "AE"),
-    ])
-});
-
-/// Maps a free-text country name to its ISO-3166-1 alpha-2 code.
-pub fn country_to_iso(name: &str) -> Option<&'static str> {
-    COUNTRY_MAP
-        .get(name.trim().to_lowercase().as_str())
-        .copied()
-}
-
-/// Converts an ISO-3166-1 alpha-2 code to a flag emoji using regional indicator symbols.
-pub fn iso_to_flag_emoji(code: &str) -> String {
-    code.chars()
-        .filter_map(|c| {
-            let upper = c.to_ascii_uppercase();
-            if upper.is_ascii_uppercase() {
-                char::from_u32(0x1F1E6 + (upper as u32 - 'A' as u32))
-            } else {
-                None
-            }
-        })
-        .collect()
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn country_to_iso_normalises_case() {
-        assert_eq!(country_to_iso("Ethiopia"), Some("ET"));
-        assert_eq!(country_to_iso("ETHIOPIA"), Some("ET"));
-        assert_eq!(country_to_iso("  ethiopia  "), Some("ET"));
-    }
-
-    #[test]
-    fn country_to_iso_handles_aliases() {
-        assert_eq!(country_to_iso("United Kingdom"), Some("GB"));
-        assert_eq!(country_to_iso("UK"), Some("GB"));
-        assert_eq!(country_to_iso("England"), Some("GB"));
-    }
-
-    #[test]
-    fn country_to_iso_returns_none_for_unknown() {
-        assert_eq!(country_to_iso("Blend"), None);
-        assert_eq!(country_to_iso("Multiple Origins"), None);
-        assert_eq!(country_to_iso(""), None);
-    }
-
-    #[test]
-    fn iso_to_flag_emoji_produces_correct_flags() {
-        assert_eq!(iso_to_flag_emoji("GB"), "🇬🇧");
-        assert_eq!(iso_to_flag_emoji("US"), "🇺🇸");
-        assert_eq!(iso_to_flag_emoji("ET"), "🇪🇹");
-    }
-}
diff --git a/src/domain/mod.rs b/src/domain/mod.rs
index bd16395..7884bbc 100644
--- a/src/domain/mod.rs
+++ b/src/domain/mod.rs
@@ -2,6 +2,7 @@ pub mod ai_usage;
 pub mod bags;
 pub mod brews;
 pub mod cafes;
+pub mod countries;
 pub mod country_stats;
 pub mod cups;
 pub mod errors;