diff --git a/data/fields/population.json b/data/fields/population.json
index 74a231f8..1eca1140 100644
--- a/data/fields/population.json
+++ b/data/fields/population.json
@@ -2,5 +2,8 @@
     "key": "population",
     "type": "number",
     "minValue": 0,
-    "label": "Population"
+    "label": "Population",
+    "terms": [
+        "census"
+    ]
 }
diff --git a/data/fields/population/date.json b/data/fields/population/date.json
new file mode 100644
index 00000000..4c3a624b
--- /dev/null
+++ b/data/fields/population/date.json
@@ -0,0 +1,12 @@
+{
+    "key": "population:date",
+    "type": "text",
+    "label": "Population Date",
+    "placeholder": "YYYY-MM-DD",
+    "prerequisiteTag": {
+        "key": "population"
+    },
+    "terms": [
+        "census date"
+    ]
+}
diff --git a/data/fields/source/population.json b/data/fields/source/population.json
new file mode 100644
index 00000000..4c1f42ea
--- /dev/null
+++ b/data/fields/source/population.json
@@ -0,0 +1,14 @@
+{
+    "key": "source:population",
+    "type": "combo",
+    "label": "Population Source",
+    "prerequisiteTag": {
+        "key": "population"
+    },
+    "snake_case": false,
+    "caseSensitive": true,
+    "terms": [
+        "census",
+        "population reference"
+    ]
+}
diff --git a/data/presets/amenity/refugee_site.json b/data/presets/amenity/refugee_site.json
index 959d8d2e..72e21d63 100644
--- a/data/presets/amenity/refugee_site.json
+++ b/data/presets/amenity/refugee_site.json
@@ -7,7 +7,9 @@
         "informal",
         "start_date",
         "capacity",
-        "population"
+        "population",
+        "population/date",
+        "source/population"
     ],
     "moreFields": [
         "internet_access",
diff --git a/data/presets/place/city.json b/data/presets/place/city.json
index da8fcd75..78c6c577 100644
--- a/data/presets/place/city.json
+++ b/data/presets/place/city.json
@@ -2,7 +2,9 @@
     "icon": "maki-city",
     "fields": [
         "name",
-        "population"
+        "population",
+        "population/date",
+        "source/population"
     ],
     "geometry": [
         "point",
diff --git a/data/presets/place/hamlet.json b/data/presets/place/hamlet.json
index fb33b6f2..36b9e7be 100644
--- a/data/presets/place/hamlet.json
+++ b/data/presets/place/hamlet.json
@@ -2,7 +2,9 @@
     "icon": "maki-triangle-stroked",
     "fields": [
         "name",
-        "population"
+        "population",
+        "population/date",
+        "source/population"
     ],
     "geometry": [
         "point",
diff --git a/data/presets/place/neighbourhood.json b/data/presets/place/neighbourhood.json
index 96b872ce..9145c7a0 100644
--- a/data/presets/place/neighbourhood.json
+++ b/data/presets/place/neighbourhood.json
@@ -2,7 +2,9 @@
     "icon": "maki-triangle-stroked",
     "fields": [
         "name",
-        "population"
+        "population",
+        "population/date",
+        "source/population"
     ],
     "moreFields": [
         "gnis/feature_id-US"
diff --git a/data/presets/place/quarter.json b/data/presets/place/quarter.json
index 1291d5bd..194ba0ea 100644
--- a/data/presets/place/quarter.json
+++ b/data/presets/place/quarter.json
@@ -2,7 +2,9 @@
     "icon": "maki-triangle-stroked",
     "fields": [
         "name",
-        "population"
+        "population",
+        "population/date",
+        "source/population"
     ],
     "geometry": [
         "point",
diff --git a/data/presets/place/suburb.json b/data/presets/place/suburb.json
index 03c23532..7752a520 100644
--- a/data/presets/place/suburb.json
+++ b/data/presets/place/suburb.json
@@ -2,7 +2,9 @@
     "icon": "maki-triangle-stroked",
     "fields": [
         "name",
-        "population"
+        "population",
+        "population/date",
+        "source/population"
     ],
     "geometry": [
         "point",
diff --git a/data/presets/place/town.json b/data/presets/place/town.json
index 911abfcb..c97bb7f9 100644
--- a/data/presets/place/town.json
+++ b/data/presets/place/town.json
@@ -2,7 +2,9 @@
     "icon": "maki-town",
     "fields": [
         "name",
-        "population"
+        "population",
+        "population/date",
+        "source/population"
     ],
     "geometry": [
         "point",
diff --git a/data/presets/place/village.json b/data/presets/place/village.json
index d08042fa..0a6af854 100644
--- a/data/presets/place/village.json
+++ b/data/presets/place/village.json
@@ -2,7 +2,9 @@
     "icon": "maki-village",
     "fields": [
         "name",
-        "population"
+        "population",
+        "population/date",
+        "source/population"
     ],
     "geometry": [
         "point",
diff --git a/interim/source_strings.yaml b/interim/source_strings.yaml
index 5f4b38a0..833f3372 100644
--- a/interim/source_strings.yaml
+++ b/interim/source_strings.yaml
@@ -2509,6 +2509,11 @@ en:
       population:
         # population=*
         label: Population
+      population/date:
+        # 'population:date=*'
+        label: Population Date
+        # population/date field placeholder
+        placeholder: YYYY-MM-DD
       portable:
         # portable=*
         label: Portable
@@ -3094,6 +3099,9 @@ en:
           survey: Survey
         # 'terms: reference'
         terms: '[translate with synonyms or related terms for ''Sources'', separated by commas]'
+      source/population:
+        # 'source:population=*'
+        label: Population Source
       species:
         # species=*
         label: Species