County seats are displayed in UPPER CASE. Note: Information about zip codes, territorials, markings, etc. have been moved to detail pages for places that have links.
Post Office County Dates of Service
Hackney
Greene
1889-1905
Hadley
Maries
1907-1908
Hadley
Reynolds
1911-1951
Hadlock
Polk
1893-1894
Hadsill
Cass
1905-1925
Haepfner
Shannon
1908-1918
Hager’s Grove
Shelby
1851-1864, 1867-1915
Hahatonka
Camden
1895-1937
Hahn
Bollinger
1895-1954
Haigler
Putnam
1897-1898
Hailey
Barry
1881-1936
Hailey’s Mill
Sullivan
1852-1854
Hainesville
Clinton
1843-1880
Hainley’s Switch
Mississippi
1890-1894
Halcyon
Dent
1903-1905
Hale
Carroll
1884-Present
Hales College
Wayne
1881-1882
Hales Point
Andrew
1851-1854
Halesburgh
Andrew
1858-1859
Haletown
Bates
1855-1856
Half Rock
Mercer
1867-1900
Half Way
Polk
1850-Present
Halifax
Saint Francois
1888-1925
Hall
Lawrence
1850-1864
Hall Town
Lawrence
1879-1894
Hall’s Point
Cedar
1858-1860
Halleck
Buchanan
1862-1902
Halloran
Butler
1890-1911
Halls
Buchanan
1876-1954
Hallsa’s Ferry
Nodaway
1850-1874
Hallsville
Boone
1846-1850, 1855-Present
Halltown
Lawrence
1894-Present
Hamburg
Saint Charles
1851-1941
Hamden
Chariton
1874-1953
Hamel
Macon
1893-1901
Hamilton
Caldwell
1858-Present
Hamilton
Daviess
1858
Hamilton’s
Saint Louis
1823-1824
Hammack
Macon
1896-1904
Hammond
Ozark
1894-1895, 1906-1975
Hampton
Jefferson
1844-1856
Hampton
Platte
1853-1856, 1858-1864, 1867-1871, 1874-1904
Hams Prairie
Callaway
1865-1872, 1875-1907
Hancock
Pulaski
1869-1873, 1879-1955
Handley
Dallas
1900-1905
Handy
Barry
1860-1862
Handy
Ripley
1913-1954
Hanna
Pulaski
1901-1943
Hannibal
Marion
1820-Present
Hannigan
Atchison
1847-1852
Hannon
Barton
1890-1953
Hanover
Jefferson
1864-1885
Hanson
Marion
1849-1859
Happy Valley
Harrison
1866-1906
Haran
Hickory
1880-1881
Hard Scrabble
Scotland
1858
Hard Wood
Vernon
1857-1859
Hardage
Shannon
1817-1951
Hardemann
Saline
1890-1906
Hardenville
Ozark
1921-Present
Hardin
Ray
1858-Present
Harg
Boone
1892-1907
Harlem
Clay
1866-1913
Harlow’s Mills
Texas
1875-1876
Harmony
Washington
1827-1874
Harmony
Livingston
1899-1906
Harmony Mission
Van Buren
1838-1839
Harold
Greene
1887-1907
Harper
Mc Donald
1882-1888
Harper
Saint Clair
1891-1917
Harrblton
Camden
1877-1879
Harris
Sullivan
1887-Present
Harrisburg
Lafayette
1844-1850
Harrisburg(h)
Boone
1871-Present
Harrison
Callaway
1828
Harrison
Harrison
1872-1873
Harrison’s Mills
Crawford
1832-1880
Harrisonville
Van Buren
1837-1854
HARRISONVILLE
Cass
1854-Present
Harriston
Cooper
1873-1908
Hart
Mc Donald
1883-1911
Hartford
Putnam
1851-1900
Hartley
Cedar
1895-1907
Harts
Lincoln
1881
Hartsburg
Clay
1838-UNK
Hartsburg
Boone
1894-Present
Hartsburg
Platte
UNK-1840
Hartshorn
Texas
1891-Present
HARTVILLE
Wright
1842-1863, 1865-Present
Hartwell
Henry
1887-1968
Hartzell
New Madrid
1918-1941
Harvester
Saint Charles
1881-1901
Harviell
Butler
1874-Present
Harwood
Vernon
1882-Present
Haseville
Linn
1879-1908
Hastain
Benton
1884-1951
Hasty
Dunklin
1894-1895
Hatch
Ralls
1883-1905
Hatfield
Harrison
1878-1986
Hathaway
Saint Louis
1875-1876
Hattie
Texas
1891-1894, 1898-1957
Hatton
Callaway
1882-1953
Havana
Reynolds
1905-1907
Havanna
Gentry
1856-1857, 1860-1862, 1865-1871
Haven
Greene
1895-1906
Havens
Lawrence
1872-1877
Haw
Mercer
1891-1906
Haw Creek
Morgan
1843-1846
Haw Creek
Benton
1853-1860, 1869-1875
Haw Creek
Pike
1888-1896
Hawcreek
Pike
1896-1901
Hawk Point
Lincoln
1840-Present
Hawkeye
Camden
1892-1893
Hawkeye
Miller
1893-1897
Hawkins
Monroe
1882-1906
Hawkins
Pulaski
1910-1926
Hawkins Store
Shelby
1855-1859
Hawley
Wright
1883-1906
Haworth
Taney
1887-1890
Haybrook
Webster
1866-1868
Hayden
Maries
1890-1972
Haydenville
De Kalb
1879-1888
Haynesville
Clinton
1880-1881
Haysville
Dallas
1854-1856
Hayti
Pemiscot
1895-Present
Hayward
Pemiscot
1887-1916
Hazel Grove
Saline
1842-1869
Hazel Run
Saint Francois
1844-1846, 1872-1928
Hazelhurst
Livingston
1898-1900
Hazelville
Scotland
1879-1896
Hazelville
Knox
1896-1908
Hazelwood
Wright
1844-1863
Hazelwood
Saint Louis
1958-Present
Hazen
Cass
1870-1872
Hazen
Webster
1880-1888
Hazle Barrens
Barry
1860-1863, 1867-1875
Hazle Bottom
Newton
1848-UNK
Hazle Bottom
Barry
UNK-1863
Hazle Green
Laclede
1858-1861, 1865-1895
Hazle Grove
Atchison
1877-1880
Hazle Runn Mills
Saint Francois
1858-1864
Hazlefield
Clark
1845-1846
Hazlegreen
Laclede
1895-1958
Hazleton
Texas
1890-1944
Hazlewood
Webster
1867-1880
Headouarters
Stoddard
1895-1900
Heady
Greene
1892-1903
Heagy
Stoddard
1920-1923
Heath
Lawrence
1899-1902
Heather
Marion
1901-1906
Heaths Creek
Pettis
1857, 1879-1881
Heaton
Lawrence
1872-1881
Heatonville
Lawrence
1888-1891
Hebron
Livingston
1887-1900
Hebron
Douglas
1905-1935
Heck
Maries
1900-1904
Hecla
Grundy
1883-1887
Hecla
Linn
1894-1906
Hedge City
Knox
1876-1907
Hedrick
Dent
1884-1907
Helen
Ozark
1858-1860
Helena
Andrew
1880-Present
Helton Station
Marion
1878-1880
Helvey
Reynolds
1915-1917
Helwig
Holt
1895-1905
Hematite
Jefferson
1858-Present
Hemenway
Ripley
1907-1920
Hempland
Lafayette
1857-1860
Hemple
Clinton
1889-1974
Hempstead
Callaway
1868-1872
Hen Peck
Carter
1867-1868
Hendersons
Greene
1852-1863, 1868-UNK
Hendersons
Webster
UNK-1905
Hendrickson
Butler
1875-1975
Hendricksville
Cape Girardeau
1866-1869
Hener
Macon
1899-1907
Heniker
Franklin
1885-1903
Henley
Cole
1902-Present
Henpeck
Shannon
1855-1863
Henrietta
Franklin
1867-1869
Henrietta
Johnson
1877-1904
Henrietta
Ray
1908-Present
Henry
Ray
1869-1908
Henson
Mississippi
1877, 1881-1884, 1892-1932
Herculaneum
Jefferson
1811-1858, 1890-Present
Hercules
Taney
1899-1935
Herdsville
Barry
1872-1873
Hereford
Callaway
1898-1907
HERMANN
Gasconade
1838-Present
HERMITAGE
Hickory
1848-Present
Hermix
Harrison
1898-1899
Hermondale
Pemiscot
1919-1955
Herndon
Saline
1873-1907
Herron
Camden
1863-1864
Hess
Chariton
1888-1893
Hest
Douglas
1915-1925
Hester
Marion
1850-1906
Heth
Douglas
1873-1878, 1884-1889
Heth
Ozark
1878-1879, 1884
Hiatt
Webster
1899-1905
Hibernia
Callaway
1825-1871
Hickman
Knox
1866
Hickman Mills
Jackson
1868-1956
Hickory
Grundy
1878-1942
Hickory Barren
Greene
1846-1906
Hickory Grove
Warren
1823-1854
Hickory Grove
Saint Charles
1854-1860
Hickory Hill
Miller
1862-1866
Hickory Hill
Cole
1866-1912
Hickory Port
Grundy
1857-1867
Hickory Ridge
Cape Girardeau
1856-1862, 1867-1869, 1871-1875
Hickory Spring
Texas
1853-1860, 1869-1875
Hickory Spring
Wright
1860-1862
Hickory Top
Howell
1861-1863
Hicks City
Jackson
1872-1906
Hico
Saline
1882
Hico
Dallas
1903-1907
Higbee
Randolph
1873-Present
Higdon
Madison
1895-1942
Higgerson
New Madrid
1902-1908
Higginsville
Lafayette
1870-Present
High Blue
Jackson
1851-1855
High Blue
Cass
1860-1862, 1867-1872
High Camp
Stone
1873-1875
High Creek
Holt
1843-1850
High Gate
Maries
1877-1971
High Grove
Crawford
1856-1862
High Grove
Maries
1862-1909
High Hill
Montgomery
1837-Present
High Hill
Warren
1837
High Point
Cole
1844-1852
High Point
Moniteau
1852-1973
High Prairie
Webster
1872-1873, 1883-1891
High Ridge
Jefferson
1856-Present
High Spring
Greene
1850-1851
High View
Cass
1877
Highland
Jackson
1848-1853
Highland
Moniteau
1870-1872
Highland
Perry
1889-1906
Highlandville
Christian
1872-Present
Highview
Lincoln
1894-1904
Hilbert
Butler
1881-1884
Hilberton
Adair
1904
Hilda
Taney
1896-1897, 1905-1975
Hilderbrand
Cape Girardeau
1905-1954
Hildray
Pike
1900-1904
Hiler
Jackson
1893-1902
Hill City
Barry
1874-1880
Hillard
Butler
1884-1906
Hillcrest
Taney
1906-1911
Hilldale
Howard
1894-1910
Hilliscrown
Randolph
1857-1858, 1866-1867
Hills Landing
Carroll
1857-1861
Hills Point
Platte
1840-1848
HILLSBORO(UGH)
Jefferson
1838-Present
Hillsboto Station
Jefferson
1858-1863
Hilo
Douglas
1906-1824
Hilton
Nodaway
1875-1877
Himmel
Stoddard
1920-1921, 1924-1933
Hinch
Crawford
1896-1954
Hines
Lincoln
1882-1904
Hinkard
Bollinger
1906-1907
Hinkle
Macon
1894-1900
Hinkle
Phelps
1914-1937
Hinkson(s)
Boone
1823-1826, 1899-1901
Hinton
Boone
1885-1907
Hippner
Wright
1905-1913
Hiram
Wayne
1900-Present
Hirdler
Moniteau
1898-1905
Hitt
Scotland
1860-1914
Hiwassie
Oregon
1872-1874
Hixon
Ozark
1904-1905
Hobart
Lincoln
1897-1903
Hobson
Dent
1893-1954
Hobsons Choice
Daviess
1843-1844
Hockman
Benton
1883-1909
Hocomo
Howell
1931-Present
Hodge
Lafayette
1888-1963
Hodge’s Store
Stoddard
1872-1873
Hoeberville
Saint Charles
1879-1914
Hoecker
Miller
1904-1921
Hoelscher
Lincoln
1893-1895
Hofflin
Crawford
1903-1943
Hoffman
Johnson
1892-1904
Hog Hollow
Saint Louis
1871-1872
Hogan
Iron
1880-1887, 1897-1943
Hogan Mountain
Iron
1871-1876
Hoggatt
Webster
1910-1914
Hogles Creek
Saint Clair
1847-1863
Holberts
Crawford
1917-1918
Holcomb
Dunklin
1882-Present
Holden
Johnson
1859-Present
Holland
Pemiscot
1900-Present
Holliday
Monroe
1873-Present
Hollinsville
Audrain
1895-1907
Hollister
Taney
1904-Present
Hollisters Mill
Holt
1849-1852
Holliway’s
Gasconade
1832-1834
Hollow
Saint Louis
1884-1904
Hollywood
Dunklin
1898-1974
Holman
Webster
1903-1911
Holman’s Store
Warren
1871-1890
Holmes Park
Jackson
1890-1955
Holschen Landing
Perry
1891-1898
Holstein
Warren
1855, 1858-1953
Holt
Clay
1869-Present
Holts Summit
Callaway
1869-Present
Home
Knox
1847-1855
Homeland
Howell
1873-1876, 1886-1895
Homer
Atchison
1871-1881
Homer
Dallas
1894-1895
Homer
Stone
1899-1911
Homestead
Laclede
1892-1895
Homestead
Carter
1897-1906
Honduras
Wright
1871-1872
Honey
Mercer
1872-1879
Honey Creek
Newton
1843-UNK
Honey Creek
Cole
1888-1893
Honey Creek
Mc Donald
UNK-1863, 1867-1871
Honey Grove
Worth
1863-1865
Hong
Vernon
1882-1883
Hooker
Pulaski
1900-1955
Hoover
Vernon
1881-1893
Hoover
Platte
1894-1899
Hoovers Mill
Greene
1839-1840
Hope
Mercer
1879-1880
Hope
Clark
1884-1891
Hope
Christian
1892-1894
Hope
Osage
1897-1974
Hope Chapel
Atchison
1879-1882
Hope Tavern
Moniteau
1870-1871
Hopewell
Mississippi
1852-1867
Hopewell
Washington
1886-1978
Hopewell Academy
Warren
1863-1906
Hopewell Furnace
Washington
1855-1886
Hoping
Saline
1888-1907
Hopkins
Nodaway
1871-Present
Hord
Callaway
1881-1895
Horine
Jefferson
1916-1942
Horine Station
Jefferson
1862-1863, 1867-1916
Hornersville
Dunklin
1875-Present
Hornes
Holt
1868
Hornet
Newton
1882-1902
Horse Creek
Dade
1849-1858
Horse Creek
Barton
1858-1878
Hortense
Henry
1895-1901
Horton
Howell
1885-1886
Horton
Vernon
1891-Present
Hoserg
Lawrence
1905-1968
Houck
Cape Girardeau
1886-1906
Hough
New Madrid
1901-1929
House(’s) Springs
Jefferson
1833-1858, 1864-Present
Houston
Marion
1837-1856
HOUSTON
Texas
1846-1863, 1865-Present
Houstonia
Pettis
1872-Present
Howard
Jasper
1897-1903
Howard Corner
Grundy
1859-1861
Howard Court House
Howard
1817-1821
Howard’s Mills
Saint Clair
1854-1886
Howards Ridge
Ozark
1905-1978
Howards’ Mills
Rives
?
Howe
Mc Donald
1900-1905
Howell
Saint Charles
1900-1917
Howes Mill
Dent
1859-1862, 1867-1879, 1888-1957
Howland
Putnam
1873-1932
Hoxie
Jasper
1883-1885
Hub
Newton
1894-1898
Hub City
Newton
1891-1894
Hubbard
Randolph
1886-1902
Hubert
Wayne
1908-1918
Huckaby
Polk
1905-1915
Huddleston
Oregon
1855-1860
Hudson
Bates
1867-1883
Hudson City
Worth
1886-1890
Hudspeth
Van Buren
1836-1837
Huff
Franklin
1900-1909
Huggins
Texas
1885-Present
Hugginsville
Gentry
1855-1890
Hughes
Cape Girardeau
1820-1821
Hughes
Nodaway
1872-1901
Hughesville
Pettis
1872-Present
Hugo
Montgomery
1888-1903
Hugo
Camden
1914-1943
Hulda
Benton
1904-1916
Hulsey
Washington
1890-1916
Hulston
Dade
1895-1904
Humansville
Polk
1839-Present
Humble
Vernon
1888-1891
Humboldt
Pulaski
1854-1861, 1863-1872
Humbolt
Reynolds
1887-1900
Hume
Bates
1880-Present
Humphreys
Sullivan
1881-Present
Hunnewell
Shelby
1880-Present
Hunt
Butler
1910-1913
Hunter
Mississippi
1888-1889
Hunter
Carter
1889-1976
Hunterville
Stoddard
1903-1924, 1926-1932
Huntingdale
Benton
1849-1850
Huntingdale
Henry
1856-1907
Huntington
Ralls
1878-1969
Hunts Landing
Scott
1855-1858
Huntsdale
Boone
1892-1953
HUNTSVILLE
Randolph
1831-Present
Hurdland
Knox
1872-Present
Hurley
Stone
1898-Present
Hurlingen
Buchanan
1881-1886, 1897-1901
Huron
Polk
1897-1918
Hurricane
Carroll
1869-1873
Hurricane
Bollinger
1894-1942
Hurst
Texas
1900-1919
Huskey
Bollinger
1887-1891, 1899-1907
Hussard
Ralls
1872-1895
Hutchison
Ralls
1887-1906
Hutton Valley
Howell
1857-1863, 1871-1953
Huxie
Bollinger
1900-1909
Huzzah
Crawford
1898-1967
Hy
Oregon
1885-1887, 1895-1906
Hybrid
Linn
1882-1906
Hyde
Scotland
1889
Hydesburgh
Ralls
1832-1845, 1847-1852, 1855-1871
Hyman
New Madrid
1905-1920
Hynes
Howell
1882-Present
422 Post Offices entered in the letter “H”
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Updated on 27 Nov 2009 23:28:50.
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Missouri Postal History Society, St. Louis, Missouri.